AskBasil this is about safety not inconvenience. It seems that is an easy get out clause through process for those who know they are causing difficulties.
Near the end of last term, I was forced to take my double buggy off the pavement and on to the busy road at school pick up time. Because someone had parked very far on to the kerb on bin day.
When I took my buggy out on to the road, she actually rolled down her window to yell at me because 'she was just about to move' so she stopped me on this busy road with my twin babies to throw abuse at me because I couldn't get by because of her bad parking. She couldn't understand that she was obstructing the pavement and somehow made this my fault!
All the while she was shouting at me, she was also reversing and not looking, she almost hit my 6 year old and his friend, and his mum. She DID hit another mum with a buggy, but she didn't see any of that because she was looking and shouting at me.
What people have said is right, it's the entitled behaviour, it quickly escalates and gets out of control. Cars should not be parked obstructing a public footpath, they should not block roads or park across driveways or on blind bends. They should not park on zig zags or lines.
If everyone parked considerately, the school wouldn't need to put out a letter.
The school are protecting your kids!
Don't forget, no one thinks they are the problem, it's everyone else. That is not the case, anyone who takes a car to school, no matter the reason, is contributing to the problem and should behave in away that doesn't put anyone else in danger or prevent emergency vehicles getting in or out.