janerowena, thanks for your posting, and yes, all of those things, I agree
- but "making yourself practise at home" - well, I did this for long periods of time, practising for about two or three years, when I last picked up my violin, over 20 years ago.
I'm not sure if, now, after another 20 years of not playing, I want to spend lots of time polishing my (very rusty) technique for long periods of time on my own. Maybe I will, or not.
Maybe, as you say, a social life, a sense of community, will blossom - this has happened, gloriously and very ordinarily with my scratch choir involvement. But it didn't happen for the first two years.
So as you say, there are other bonuses. It can take a while. So do I want to go for that again?