The Language the System Speaks

In December 2025, Luxembourg's parliament voted to roll out French literacy alongside German in all public primary schools. Projet Alpha, officially "ALPHA - zesumme wuessen" (growing together), had been running as a pilot in four schools since 2022. The results looked good enough. The minister pushed the button. Starting school year 2026/27, parents can choose whether their child learns to read and write in German or French.

This sounds straightforward. It isn't.

The Problem That Exists

About two-thirds of children in Luxembourg's primary schools do not speak German or Luxembourgish at home [1]. The current system teaches literacy in German. So on day one of school, most children are already behind. Not because they lack ability, but because the system chose a language that isn't theirs.

PISA data confirms the consequence: immigrant-background students in Luxembourg are roughly one year behind in literacy compared to native-language peers [2]. The OECD found that children of immigrant parents are less likely to obtain higher education diplomas and more likely to end up in unskilled work [2]. The language barrier isn't incidental. It's structural.

Projet Alpha addresses this directly. If your household speaks French or Portuguese or a Romance language, your child can now learn to read in a language closer to what they already know. Developmental psychologist Pascale Engel de Abreu at the University of Luxembourg confirms the cognitive case: any language works for literacy, as long as children have sufficient proficiency and receive systematic instruction [3]. Kids can learn to read in a second language. The language itself isn't the bottleneck.

The Problem That Doesn't Exist Yet

Linguist Constanze Weth, also at the University of Luxembourg, raises a different concern. French orthography is less transparent than German. In German, the mapping between sounds and letters is relatively straightforward. French is different: grammatical information like gender and plural is written but not spoken. "Le petit chien court / les petits chiens courent" looks very different on paper, but sounds nearly the same [3].

This matters for the transition. Luxembourg's school system still expects children to know both languages by the end of primary school. If a child learns French literacy first, then encounters German with its transparent phonetics, they might default to reading phonetically in both languages, skipping the grammatical markers that French writing encodes. Weth puts it clearly: German-first-then-French is didactically cleaner [3]. But Projet Alpha needs to work the other direction, because the whole point is serving children whose home language is closer to French.

"That is an open research question," Weth says [3].

"From a linguistic research perspective, we would have liked a longer observation of the ALPHA pilot project."
, Constanze Weth, University of Luxembourg [3]

The Language Nobody Talks About

Both researchers agree on something that the political debate mostly ignores: Luxembourgish literacy would make cognitive and structural sense.

Engel de Abreu says there is no cognitive reason against it [3]. Weth goes further: it would be consistent with the existing system, because Cycle 1 already builds language readiness in Luxembourgish [3]. Children are prepared for literacy in Luxembourgish, then told to read in German or French. That's not a coherent pipeline.

But Luxembourgish has a problem that German and French don't: its written form isn't standardized in education. Teachers speak it, kids hear it, some written material exists, but orthography norms aren't taught or evaluated through school. Weth asks the uncomfortable question: if Luxembourgish gets a bigger role in the classroom without its written norms being taught, "does everyone just write it however they want?" [3]. And what does that do to how children learn to write German and French?

It's not that Luxembourgish can't be a literacy language. It's that the system hasn't built the infrastructure for it. Standardized orthography, teaching materials, teacher training, evaluation criteria: none of it exists at the scale a nationwide rollout would require.

The Infrastructure Problem

This is where the political debate gets sharp, and where it matters to stay honest about what the actual disagreements are.

The teachers' union SNE doesn't oppose the concept. Their president, Patrick Remakel, says French literacy "can be a solution for some children, but not for all" [4]. Their concern is implementation: running two parallel literacy programs in schools that already lack classroom space, where teachers are already stretched thin, and where the pilot only produced results for the first two cycles, not the full primary path [5]. What happens when French-literate children hit German instruction later? The pilot didn't run long enough to find out.

Remakel also questions who decides. The law gives parents the choice. But teachers are "best placed to assess" which language fits, he argues [4]. A Luxembourgish-speaking family might choose French literacy because they see it as more useful for their child's future, even though German would align better with what they already speak. Parental preference isn't the same as pedagogical assessment.

On the other side, Mike Richartz made the "atomic bomb" comment: the system works for 75% of students, the other 25% need support, but you don't restructure the entire system for that [3]. It's a fair structural point, even if the metaphor is reckless. Targeted help versus systemic change is a real debate.

But here's the thing: targeted help within a broken pipeline is still broken. If 2/3 of children start school already behind because the language isn't theirs, that's not a 25% problem. That's a system designed for a minority of its students.

The Demographic Reality

Luxembourg's language landscape has shifted dramatically. According to the 2021 census, Luxembourgish as a main language fell from 55.8% to 48.9% in a decade [6]. Among working-age adults (30-59), usage dropped below 50%. German as a main language fell even harder, from 31% to 23% in terms of regular speakers [6]. The population grew by 25.7% between 2011 and 2021, and most newcomers don't speak Luxembourgish [6].

French, meanwhile, is the dominant language of the workplace, used by over half the population [6]. English is rising fast. Portuguese remains the second most common main language after Luxembourgish [6]. This is not a temporary shift. This is what Luxembourg is now.

The question isn't whether the school system needs to adapt. It does. The question is whether Projet Alpha is the right adaptation, done the right way, with the right support.

What the Research Actually Says

Engel de Abreu's conclusion is the one that should frame this debate: "If all children receive good language preparation, high-quality instruction, and targeted support, a unified literacy model can promote equal opportunity for all children" [3].

Note the condition. If they receive it.

The unions are saying those conditions don't exist yet. The researchers wanted more time to study the pilot. Small communes don't have the classrooms or the teachers. The transfer problem between French literacy and German instruction is an open research question. Luxembourgish literacy, the option that might actually be most consistent with how the system already works, hasn't been built.

None of this means Projet Alpha is wrong. The cognitive case is solid. The demographic case is overwhelming. Children shouldn't start school already behind because the system picked a language they don't speak.

But a reform that's right in principle and underbuilt in practice just creates new problems while solving old ones. The language the system speaks, in the end, isn't German or French or Luxembourgish. It's the language of adequate funding, trained teachers, classroom space, and time. Without those, the words on the law don't reach the children.