Once the Christians realize every religion gets equal time, no matter how absurd, the debate would die a quick death....
Maybe, maybe not. Being in a predominately Christian country, I think that the bible's view of creation seems rather reasonable in comparison to some of the other mythologies where the earth is a child of some cosmic couple or other such things. Although I don't know all of the other myths.
If you teach a bunch of ridiculous stories, the one you've grown up with is going to sound reasonable by comparison, bolstering it as the truth.
Think of how we thought we were right as JWs. Part of it was constantly being shown how other religions weren't right.
And, btw, my kids learned a little about Roman mythology in school. So religion is being taught in schools. More as history though.