Other than NAMBLA and a few radical leftists there is no such movement.
Maybe a few million leftwing teachers as well. Popular culture presses this time and time again, portraying parents as dumb, simple, while children "know everything".....
Children can go get an abortion without telling Mom or Dad.....because activist left wing judges essentially believe that a child's whims supercede parental rights. In spite of all of these examples, you'll still insist that their is no concerted effort underway.
By the way, you may want to try something other than the "Simpsons" as an authority on Constitutional law. It all makes sense now.