One of my sons did an automotive apprenticeship and got his ticket.
He found that working at a dealership to start with for over a year was mainly a gopher job . His interest was not in washing/cleaning cars nor just servicing - oil, oil filter, fuel filter, plugs etc... They still treat apprentices like dumb ass lackeys, so he found a performance engine building shop to do his apprenticeship, which was alot more interesting.
After he obtained his certificate he left the trade. The money was never good and didn't get much better.
Although I would always reccomend the young folk get qualified in something to fall back on.