What makes you think that children who at that time will learn by simply watching and subconsciously picking things up will not normalize those things?
It's why it's being pushed so heavily in childrens cartoons and media for families and comics and games now and popular culture.
It's designed to get them while they are young and hard groom and brainwash them and demonize anyone who speaks up by calling them crazy, old fogies, homophobds, and republicans.
That is what is going.
This is happening right now
This is a plan that is being heavily pushed in every corner of western media, academia, and even in social media.