As Satchel Paige said, "If you didn't know how old you was, how old would you be?" When I bought my first guitar three years ago at age 55 my instructor said, "Why does an old guy with arthirtic fingers want to play guitar?" Because I've always wanted to and it may be the last thing I do before I die. My yougest son, 27 at the time, had a college "surf" band (actually got paid for playing sometimes) said give it at least three years before I give up. Still learning, acquiring guitars and other instruments. Actually helping arthritis (but not my knees). My wife says I have to learn to play one thing before I can buy another. Never too old.