Indeed. When I was working my hourly wage was very high and my free time slim. There was great benefit in trading some of that plentiful money for others skills at a much lower cost to me than if I did it myself.
But now my time is plentifu and value of time is low.
Here's another look at it that fits well with your observation. I probably wouldnt mind doing some light handyman work around the neighborhood. Everyones house needs things done, they all work full time jobs, and all the homes were built by the same builder and I know what he screwed up.
But I'd have to get a contractors license and a business license, pay fees, and get liability insurance out the wazoo. It'd cost me a bunch of money up front and be a pain in the butt. I'd have to put in a fair number of hours for it to be profitable. No thanks.
A hundred years ago, even fifty, I could have put out a shingle and dropped some notes in peoples mailboxes and been in business doing what I wanted to do when I wanted to do it, making good on the comparative advantage deal.