The Catholics do it. They practically require it, and they make those who don’t feel like they’ve condemned their kids to purgatory...or to lesser football schools (the real kicker with mid-west Catholics. :>)
If they can do it and make it work and have the best schools in the nation, then so can the Southern Baptists.
Yes - the Catholics had it right from the beginning. Baptists, however, are very stubborn ;-)
In my town, the Southern Baptist school ends with Grade 8, I think. When those kids move in to public schools, they score far above the ones who’ve been in public schools from Kindergarten.