I understand the opposition believes children should learn tolerance at home from those who are closest to them. In the ideal world that would happen. They see their parents being violent, drinking, cursing the neighbors. Some parents teach their children that certain groups of people are bad or evil and they should be stricken from earth. The fact is that too many children do not have anyone at home to teach them tolerance.
School can be a place where that can be available.
I know there are many families full of love and tolerance, but there are also many that are not. We need to be sure that all children are taught tolerance,not just those fortunate enough to live in a family who teaches it.