My dad has ran an auto repair shop for 40 years and it stopped being any sort of fun like 15 years ago.

That’s not even the biggest problem though. It’s customers and their entitlement. Worse every year.

Parts took longer to ship than promised? Mechanics fault

Car needs to go to the dealer? Mechanics fault

Something plastic piece broke on your car during disassembly because it was designed to break? Mechanics fault

Job supposed to be 10 hours labour but took you 15 because it’s not easy? Guess you just lost money helping someone cuz you have to eat the cost of those 5 hours