I wish people would give the 20-somethings, hipsters or not, a break. Support them, don't dis them. Be nice and encouraging. Some of them will tire of photography at some point and find other things that interest them, but some of them you'll meet on these forums eventually.
My 20's were a long time ago, but I was shooting film back then and I don't recall getting anything but encouragement from the other film shooters I ran into. That was pre-internet. Maybe people were nicer then?