Most people that are interested in repairing electronics tend to be getting up there...like me. Most have the time and patience to help and are happy to help.
When I bought my HP339A distortion Analyzer on Ebay, it had a problem in a power supply. It needed an obsolete regulator.
A fellow in New Zealand sent me one at no cost to me and at considerable shipping cost to him.
He wouldn't accept any money.
Hopefully I can pay it forward at some point.
Almost everyone I deal with in my business is getting up there, ...musicians and techs.
There will be alot of expertise disappearing over the next few years that can't easily be replaced.
In the meantime repairing gear keeps me busy and out of trouble, a few dollars to spend on my other likes, and is good exercise for my brain.
I love being able to figure out where the problem is and I get alot of satisfaction from making electronic gear function again.
I also get alot of satisfaction from seeing the joy that people experience, when I get their equipment repaired.
Lately I've been repairing a few turntables. People almost pee their pants when they hear how good vinyl sounds.
They usually can't wait to get home to relive their youth listening to their old albums!!