I think the biggest impact is going to be felt with current generations of 18 year olds. My kid (about to be 18) has no interest in getting a driver's license and neither are any of his friends. He's happy to be taking Uber and Lyft anywhere he goes. And between the cost of the vehicle and insurance, it's cheaper for me as well. When I was 16, I couldn't wait to get a car.
I didn't drive a lot (or own a car) until I graduated from school. But I do have trouble wrapping my head around not getting a driver's license past a certain point--whether they get one while in school or not. Even had Uber/Lyft existed at the time, I literally couldn't have done my first job (I regularly had to drive hours to a job site) and I would have been at least reliant on other people at other jobs. Vacation…
While I don't recommend skipping the driver's license despite these circumstances, I can understand that it's a legitimate option for a teenager that doesn't plan to drive.