Not school parking related, but rwice a week two young fit women used to ignore the car park 200 yards away and park on double yellow lines, then walk around the corner to spend an hour in the gym! There was a church across the road. If funeral cars were parked outside there was barely room for cars to pass, and no chance for an emergency vehicle.
My friend witnessed this procedure for several weeks, from his shop, before finally speaking to them about it. He received loud abuse in return, but they did park somewhere else after that.
I always used to walk to school, as also did my children, in all weathers. My friend used to travel 15 miles, from the age of 11, using two buses to get to our school. It was the one her Mum went to, so she was enrolled their too! Crazy, but she was always there before me in the morning! Many parents say that they have to drive their children to school because the roads are too busy and unsafe. I have noticed that there is much lighter traffic in the school holidays, though, so they are creating their own problems.