This is what has been attempted by the Ferry laws in France. The high rates of atheists and agnostics in France are a consequence of these laws, which made education mandatory and reduced the influence of the Catholic church on education.
However, I do not think it raised the sanity line in other domains, and it had bizarre effects, such as an important part of the population which say they belong to a religion but do not believe in any god.
This is what has been attempted by the Ferry laws in France. The high rates of atheists and agnostics in France are a consequence of these laws, which made education mandatory and reduced the influence of the Catholic church on education.
However, I do not think it raised the sanity line in other domains, and it had bizarre effects, such as an important part of the population which say they belong to a religion but do not believe in any god.