[SamPatt]

There's some evidence that preschool improves children's educational outcomes in the short to medium term, but actually is negligible or even harmful in the long term.

A study of Tennessee's pre-k program showed that students who went to pre-k outperformed students who didn't in first grade, but by sixth grade, they performed worse.

https://www.science.org/doi/10.1126/science.adn2141

[kekpopzed]

This article says more research is necessary and I cannot read their methods so it is a bit disinegous to cite this as some kind of proof. Especially when the article says early education programs vary in content. Tennessee has one of the worst school systems in the US, #41:

https://worldpopulationreview.com/state-rankings/public-scho...

And in terms of content, Tennessee bans the teaching of slavery, so I’d be suspicious of any study related to education done there:

https://www.tennessean.com/story/opinion/2021/10/05/how-tenn...

[SamPatt]

Tennessee was the most stark example, but not the only one. And the fact that education is often sub-standard isn't a good case for more of it.

The point: it isn't blindly obvious that devoting even more of our children's lives to an education institution is necessarily best for them, in all cases.