There is a diffrenxe between sexual material and vulgar violent materialThat's pretty much bull. As a parent it's my responsibility to expose my children to things as they become mature enough to handle them. It's also my responsibility to make sure they aren't exposed to things they aren't mentally mature enough to handle.
What you're saying is that's it's OK to show children whatever you want b/c it helps them grow...which means that it's ok for teachers to show 5 and 6 year olds sexually explicit material and then convince them they should be a different gender.
I'm not sure you've thought about what you wrote before you wrote it.