Played guitar and drums from 11 to 17, quit drums when I joined the military. Devoted myself to guitar until I was 35.
Returned to drumming at about 38.
Did you have any other musical experience? That probably makes a huge difference. I've seen people start out on drums having no musical ability and I think to myself "how?"
Thinking back to when I started, I definitely had some concerns about aggravating the hearing loss that seems to come naturally with aging (or is that just me?). Also about the impacts of more chair-sitting on my back and neck (again with the aging). I was very surprised about the physical demands - not something I really expected from a musical instrument. In retrospect I guess that should have been pretty obvious...I was 8. Wow I’m amazed that a majority of us started relatively young. Maybe it’s just a sampling error and more people speak up the age go up? But as it is I think it’s significant maybe it’s a behavioral trait or one that would lend itself to drumming-like specific improved motor skills, etc. ?