I have hired someone to work on my home's electrical who did not have a license. A lot of people let unlicensed tradesmen, family members, or themselves do work on their home. Frankly, like programming, most of it isn't really that hard.
No I would not. Home electrical wiring is becoming increasingly complex today, with the rise of whole-house surge suppressors, backup generators, solar panels, and sensitive expensive electronics everywhere.
Assuming that half of the US houses were built before 1980 (when electrics were still primitive and wiring was sometimes aluminum), fitting modern services into a home with knob and tube wiring and floating grounds (like mine) is NOT something I want to trust to a jackleg, no matter how many years of experience he has.
