Because you are stupid, dumb, and boring.
It is not about partying all the time, nor is it about talking about some dumb shit.
It is about culture and lifestyle. No matter what you do; you will always be wrong. You cannot decide what someone else likes. You do it wrong. Some people just know how to do it.
It is not something that can be taught, and it depends on mood. Stop trying. It is why you end up dead.
Learn that is how they live; try to change it. No matter who you are; odds are you will die.
Don’t watch them, don’t study then, don’t fucking piss them off.
That is the way of the world.