Yes, I'm one of the lousy ones. I could play songs you would recognize on at least 4 different instruments from 3 different instrument families. On guitar, I took the time to learn to play a few things well. I played in a few open-mic nights--never for pay like you. I used to walk on a trail through the woods (next to where I lived) and play and sing some old country blues. A gal overheard me once and complimented me, and I made a date with her on the spot. She chickened out though before the eagle flew (on Friday) though... I still sing something everyday I think, just for the halibut.
With regard to your generalization, I think "we" are drawn towards technical things--things with moving parts, etc., and some of us are probably creative and/or artistic.
Bill
Musicians do tend to find other interesting things to