The kids in my neighborhood learned how to ride a skateboard, or play baseball, or even golf. No one I knew was into music or taught to play piano. All I know is the hollow notes are held longer than the filled-in ones. :-( But I have several good friends...
I had parents who were willing to pay for lessons and take me to them, and push me to keep going when things were tough. Still, it is never too late to start playing music.