Yes cars will run through abuses unheard of when I was starting out. Back then, you left ignition unattended, fuel filters unchanged, carbs unchecked, you'd be at the shop for a no start before too long. With today's computers the systems just compensate for user abuse and keep on trucking until the bitter end...
A case study of what the industry is like today and why so many mechs look so weary
"Hello, how can I help you?"
"car wont start, just died, now it cranks but nothing"
"Any lights come on recently, feel anything strange?"
"nope, nothing unusual...... but the engine light's been on for a year, and sometimes the car shakes"
bring the car in, it has 10 engine fault codes... start inspecting affected systems, find the cause of the faults, understand the failure sequence that brought the car to the point of not starting as well as what needs to be done to have the car run well without causing further related failures
"Okay we've looked at your car and it needs spark plugs, a few coils, an O2 sensor and a Converter... Oh and there's an Evap fault as well. Here's the breakdown of what needs to be done" (and explaining why)
"WHAT! THAT'S SO MUCH STUFF!!! AND SO EXPENSIVE"
"I'm sorry, I understand, I wish I could break it up for you, but apart from the EVAP it needs all of it to run correctly"
"Well I can't afford that so I'm just going to tow it home"
"Alright, sorry again. I wish I could do more for you; if you can afford it later we'll do our best to help you out"
Customer goes home, and hits the Google hard, finds a DIY for coil replacement and a post which "confirms" he only needs to do a coil if it goes bad as it's "common"... replaces the 2 coils, car runs again. Satisfied with the fact that it runs, customer decides to go to Google and write a scathing review of how he was almost ripped off... 7 weeks later, car comes back. Cust explains how he did the two coils but now it's shaking again and he had a hard time starting it a few times.. customer insist we diagnosed it wrong, and that even after the car was running again it was "slow now" and something else must be wrong. We explained that extremely worn plugs put excess load on the coils and premature failure, and once the coils are dead the unburnt fuel from the misfiring cylinders goes into the converter and ignites which melts all the material inside, plugging the exhaust, which results in poor acceleration and power.... customer leaves again in an angry fit never to be seen again...
Sound fun?
There is plenty of stories like that to be told... and as the middle class continues to erode this story becomes more the norm as the financial pressures mount on average joe... Not so much for me these days though... setting up shop in the right neighbourhood helps
You don't think so? I wouldn't need more than my ten battered digits to count the times I've received cash tip over the years; plenty of free coffee, but that's likely just to keep me primed for their personal convenience