This is not a widely shared opinion.
I feel like I can think of lots of situations where society puts in to protect children rather than leaving it to the parents (age ratings on films and games, YouTube Kids, regulations around advertising to children, the whole concept of school, reduced speed limits around playgrounds to give a few examples off the cuff).
History shows its not necessary always the case.
depends on your culture.
(Yes, I read your comment history. I was tryinna figure out if you were in fact that guy and saw a bunch of conspiracy-ass right wing misinformation.)
Its not reactionary to say you dont want the state to interfere too much in your child éducation.
Whether you are left or right its fine as long as the state aligns with you. But if you open an history book, you will sée it VERY OFTEN happened that states get crazy / ideological or just plain eugénist / liberticide.
Its dangerous to give too much power to the state