Well, you're 14 now. If you plan on doing this for awhile (I started at 10 and I'm 53 now), I'd suggest SOME type of shoe, and get used to it now. Before I started playing out with bands, I played stocking foot (in my bedroom). Even when I started playing out, I'd take my shoes off while I played, then put them back on during breaks and at the end of the night. That didn't last too long though. The bottom line is ... after years of pounding, without some type of support and cushioning, you'll be doing damage. Those New Balance Minimalist shoes look pretty cool. I'm not sure I'd wanna drop $90 on a pair then go into a dive-bar, drunken-infested, toilet-overflowed, flooded bathroom though (which I do FAR too often).