@Luna I think it is normal for western couples I've seen lots of them, plus having fun isn't a crime, just as you said that they're just having fun what's the matter with it? Also being adult doesn't mean being "mature" I get that they have to be mature, but even adults can have fun, it'll be weird when we can play but adults can, also there's no such rule that people's need to mature once they reach adulthood.
Co-existing with reality cause I have no choice.

