And never have quite as much fun making music for money as you did when you carried your guitar with you around the streets.
Programming isn't as fun to me and I eventually realized it's because I'm no longer as much of an introvert. If I had a lifetime to pursue each esoteric subject matter that suits my fancy, I would. But I don't.
I like supporting my family, spending time with my daughter, cleaning and cooking when I have the time.
Games would certainly be a "fun" thing to make, but with all of the heart and passion required to make one... Heck, I don't even play video games any more. Why would I make one?
You have to both accept change and the fact that your interest will change, also.