Davis Bacon rates in DC area for plumbers & electricians are $40-$45/hour with another $15-$20/hour in fringes, plus about a dozen paid holidays. $100-$120k/year is doable on just straight time around here if you're a boots-on-the-ground worker. And in places like NYC, Philly, & Chicago, the going mob, crooked, union scale rate is much higher. Granted, DB rates are usually applied to gov't and govt'-adjacent work (which drives the economy here), but that's the market I'm in.
I'm a PM/District exec for a commercial foundation sub and we can not find enough workers. It is a real problem. Part of it stems from the whole "if you don't go to college, you're a failure" mentality that a good portion of our country has adopted. Related to that is the "if you don't send your kid to college, then YOU are a failure" guilt many parents feel.