Well, call me a creative thinking evangelist... I see how we can get the bible read very much in schools.
Make God cool. God is already cool. We just need to tell the listening world the story about how. For just one example: Let child centered bible memes out of the Christian family store ghetto.
Anyhow getting back to what you said. Having bibles in prisons is better than not having them in prisons. There could be entire prisoner-centered evangelistic curricula. The closer that penal science gets to the gospel, the better it will do at eliminating recidivism AND cruelty.
Bibles are prohibited in schools thanks to the ACLU and activist judges who overstep their bounds.
Bibles are on their way to being banned in the US military (hateful towards homosexuality (if you don’t CHAMPION it these days, that in and of itself is “hate”), banned in certain Middle Eastern countries where our men and women serve...).
But a repeat offender can claim to have found God while in prison and (while some do) that is good enough to be offered early release.