With all the government reg/requirements, on the cars, there will be no more auto mechanics. There will be Automotive Maintainence Engineers. Or there will be just parts changers, to replace the parts the vehicle itself says to change.
That is already the case now!!! How many true mechanics do you know? Someone who will actually fix something or some part that is broken. I think its rare to find a mechanic who will give more life to some broken part. Most are spring loaded to sell you new parts to replace the crap that is broken. They are all just parts changers in my opinion. The troubleshooting is being handed over to the computers.