Is it normal to feel uncomfortable when.

In all the movies and shows I have watched recently, there is always some kind of teen romance thing: In Stranger things, Cobra Kai, The watcher, Nightmare on Elm street. I find it cringey and creepy enough that these producers make these grown people pretend to be teenagers and make them have a sex scene or kissing scene when the characters are supposed to be like, 15.
But it's worse with shows like Stranger things, Casper and that movie with the kid who gets stung by the bees and wears glasses (icr the name right now but you know the one.) Me and my mum and sister are watching Stranger things recently and the fact there are literal children on screen kissing and making out makes me feel really uncomfortable and grossed out to the point that I have to leave the room, and I can't watch it. Is it normal to be really put off by this? I like the show OTHER than that, but that one thing is preventing me from being able to enjoy the show.