> this provides some pathway for parents to try and keep their children from being exposed to things

Full stop. That's the entire problem: many parents who have been indoctrinated into extreme ideological factions (that number is much bigger than you think, on the left and the right) simply can't be trusted to know what their kids can and can't handle being exposed to. I literally listened to a fellow parent just last month complaining about their kid being exposed to "critical race theory"...because he had to read a 60-page book about Harriet Tubman. To me it was laughable...but I saw more than one parent nodding their head in agreement. Fact is some parents simply want to create an echo chamber for their children similar to the ones they've created for themselves. They can't be allowed more power to do that. Look at the clown who tried to get a teacher fired because the teacher dressed too feminine. You wanna give THAT shitbag more power over what's taught in our schools? No thanks.