It also goes the other way as well.
I am an electrician (309-A) and have been working as an application engineer for an electrical manufacturer for the last 12yrs. I get approached all the time for people wanting things done, friends of friends and neighbors. Since my kids are getting older I have more time on my hands to fish & hunt and do side jobs. I carefully vet my customers as well because to be honest I am done with crawling through an insulated filled attic to install pot lights, or deal with customers that want to re-negotiate with you after the job is complete.
I do not think that the trades have ever been this busy thanks to COVID. People are renovating their homes while they are working from home. The underground economy is BOOMING and I have done jobs for cash, services in lieu of, products, and about anything else you can trade or negotiate.