I haven't a clue how it all works over there.....but here, you can do an Apprenticeship, usually goes for 4 years, and you do training at a TAFE College while getting paid to fix cars.
In some cases, some of the apprentices are just crap....because they are lazy & stuffed around a lot (didn't learn anything much), or the place they did it at, had crappy tradespeople that didn't know **** from clay and/or didn't take the time to show them how to do stuff.
This goes for any of the trades really, from a Plumber, Plasterer, Carpenter, Motor Mechanic, Diesel Fitter, Electrician....etc.
Don't you's have Apprenticeships anymore over there ????