I keep telling my 22y who graduated from a university last year to go to a trade school (HVAC/ electric, plumbing). Too late for me as these require apprenticeships in the US.

My HVAC contact in FL needs a $100 just to sniff the AC/boiler closet. That is, if I can get him to show up. I don't even know if he's licensed here, but he's definitely very experienced.