Hi Pete
Hope you are both keeping well.
Yes, keep going as long as you can. I'm in 5 bands as now covering Jazz, Americana, Blues, Rock&Roll and Rock. They don't all gig on a regular basis but enough to keep the excitement there. Two of them are sit-down jobs so easier on the back and I've now bought a short scale passive 4 string from Alpher Instruments (both light weight and easier on my injured shoulder). It's a great instrument and a joy to play. I recommend trying them out.
I'm lucky to have a supportive wife who encourages me to keep going.
Take care my friend