I don't think the public schools should be teaching creationism as science. I also would never teach my own children that it is science.
However, I would take great issue if anyone suggested that private
schools and homeschooling organizations, and parents on their own be forbidden from religious teachings. Perhaps require understanding of proper evolutionary theory to pass state testing requirements in science, since that would guarantee exposure to the other viewpoint, but I would not
forbid parents or private schools from religious teaching. That is something that would be highly illegal.