AITA for getting mad at my friends for not letting me watch a movie with them

So when i was a minor i had a couple of friends i would hang with online, they were adults and i often found myself getting excluded, this had happened in many friend groups before, they wouldnt let me watch movies with certain scenes in them, me and my parents didnt care about that btw, and they would often stop talking about stuff when i join because i was still a minor, it hurts getting left out of stuff and it hurts feeling like that but at the same time i dont know if i should just let it go because adults are clearly gonna do stuff without minors present and i know that now that i am one but still i dont like feeling excluded and i feel wrong for feeling this way. I think about it still and since i just discovered this reddit page i would ask