I remember well the days in Catholic grade school we would have one teacher, all day, for 35-38 kids....no hot lunch, no permanent librarian, no counselors, no cops, and the mothers took turns watching the school yard at recess....you could BUY milk though...with chocolate milk a few cents more expensive so of course, our mother wouldn’t let us get it...
We had smaller classes-maybe 23-25 kids, but it was a rural area Catholic school, so not many kids around anyway. No cafeteria, just the milk for about 15 cents a carton, and a lunchroom to eat the homemade lunch we brought, and the nuns took turns doing recess duty. And we turned out okay...