Love musicians, as I can play seven different instruments myself. Don't worry, those people are just f***ing retarded and don't know what they want (their 18 or under after all. Very confusing age). Just be proud that you have a beautiful skill that many would kill for. The piano is a gorgeous instrument.
thats great dude I started like that too :P But here's a tip:learn to play guitar, learn to sing, and if you don't suck youve got it made. I'm not saying that to be cocky I love my guitar and musics been my life my whole life and girls would approach me becuase of this. Do some shows, write some touchy acoustic lovesongs, there ya go. A lot of teenagers don't have respect for the piano as beatiful as it may be. Hide your inner band geek-music theory is a must for musicians but girls don't care about tripples and weird time signitures and key changes. Guitars are just sexy. My two cents.