Piano doesn't necessary have to be s solitary instrument. The pit for our H.S. Marching Band has kids who play the keyboard and vibraphone. The students who play these instruments usually started and still play the piano.

Piano is never a bad choice. It's a good instruments for understanding music theory. I took lessons for 8 years as a kid and don't regret it. But I never did manage to get either kid to take lessons although we do have a keyboard they fool around with.