Age is irrelevant. What you need to decide is whether you want to be in a band, if so what you want out of a band and what level of commitment you can give it.
I'm 43, run my own company, have a wife and daughter and my wife is currently 8 months pregnant. This year I joined a really busy function band and have played over 100 weddings all over the uk including gigs in Cornwall and one in Aberdeen. I can make it work and I'm enjoying it. I had to accept that in joining such a band I had to commit 110% . I don't get to choose which gigs I want to do. Everything that comes in has to be honoured.
I had to balance loss of family time, loss of sleep and juggling gigs plus a busy work life with the enjoyment of playing live and the significant additional income that will allow my wife to have a long maternity leave.
Just think about what you want out of a band then decide if you can make it balance. Forget age.