Do you know that school drop-offs and pick-ups can be a stressful routine?
The act of dropping-off and picking-up isn’t a big matter in my opinion.
The stress actually comes from parents who are not big fans of proper or civilised conducts with other parents who are in the same space doing exactly the same thing as they are.
Improper u-turns? High speed at a school zone? Haphazard parking? Inconsiderate stop at the drop-off bay? Not wanting to give way to exiting traffic?
Just be civil, even if you don’t like the rules or the people.