I used to patronize a shop staffed by guys in their late 20's/very early 30's. One day I told them I needed some peacock sword to tie Zug Bugs. They laughed, and said that fly was "old school". I asked if anyone had bothered to tell that to the fish, because Zug Bugs work for me. These guys felt everything not "invented" yesterday was old school, so I stopped going there. I still use soft hackles (the plain simple type), older streamer patterns, and even bamboo(!). I've stopped using indicators entirely, unless you count a hopper/dropper as an indicator rig. I'm coming up on 50, and don't believe that trout pass down fly knowledge to their fry, and if it caught fish 30 years ago, it'll catch fish today. Trout certainly don't seem to have grown weary of biting on a Mepps spinner! I do like some of the new patterns used today, and using a new technique is fun. You might even find out that it's not entirely new.