Every child who is old enough to go to school is old enough to walk 5-10 minutes from a car park to the school. I live opposite a school (and my previous house was next door but one from the school). At both places there was (is) a car park 5 mins walk away but parents prefer to create chaos in the road, block people’s access and driveways rather than take the 5 minute walk.
With Covid staggered pick ups it has got even worse. I cannot leave my home or return for a full hour at drop off abs pick up times. Especially for the afternoon pick up parents arrive earlier and earlier (because they know as it gets closer to the time it will become impossible to park) and the later pick ups also arrive early - just as the early pickups are leaving. There is only room for one way traffic due to parked cars and there are regular standoffs with cars leaving and cars arriving and no one able to get out of the way.
The ones that do manage to park run their engines in the winter because they are cold (having arrived 20 mins early in order to park) and in the summer because they are hot, making the air quality outside the school (officially tested) the worst in the whole small town.
I have come to the conclusion that the only solution is to make a 1/4 mile car exclusion zone outside schools except for residents and registered disabled. It’s good for kids to walk a quarter mile, and wouldn’t do the parents any harm either.
When I ask parents, nicely, at least on the first ask, to turn off their engines I get a mouthful of abuse. It’s in their kids’ interest to breathe clean air but when I tell them that I just get more abuse, I used to have a sign outside my garden gate saying. “children breathing; please turn off your engine” but it was stolen.
No accidents, far as I know. But that doesn’t make it okay.