There is absolutely no reason to force a Christian viewpoint down everyone's throat. If you are going to expose someone to the viewpoint of one religion, in the name of letting them have all the information to decide for themselves, then you should expose them to all religions, all stories. But this should not be done in the name of science. Science and myth each have a time and a place to be taught. The job of school is to teach what we know to be true, or what is widely accepted to be true.
Evolution falls under that category.
Creationism does not. School can and should teach what laws and theories can be presented with substantial evidence. Not everything presented in school is known for certain. Yet religious explanations of events should be kept out of the schools at all costs. Imagine the following scenario.