Here, I can answer some of that.

Hipsters think indie/bohemian inspiration means that they ought to dress how they feel like, practicality aside. I'm not sure when scarves became cool, but I guess it was around the time socks and sandals stopped being nerdy? Uh -- because some people are rich and other people aren't, and I'm not sure, but I think there's surgeries for it. New York invented pizza, so it's better by a process of elimination, plus quality.

And baseball's fun.