Maybe we should be looking at how much doctor's are actually earning. Most doctor's charge by 10 or 15 minutes. Work out that hourly rate. A lot more than the average worker. They should rein in their pay demands, as that is what it actually is.
Don't see what the problem is with walking the kids through the car park. Then the kids go into the car first, then the groceries go in. Had done this with five kids, and never had a problem.