Why do some old heads suck?

Like, I like talking to older punks cause they have all the good stories to share, like seeing all my favorite older bands, but I’ve always encountered old heads who talk shit about the current scene and say we’re not punk. I literally had one chick come up to my band and say we’re not punk cause we haven’t ’seen Subhumans 7 times at Los Globos’ like she has. Fuck you and fuck your faulty morals. Sometimes it’s just like old heads wanna hate just because the scene is a little different than it was in the 90’s or something