I'm almost never even driving during a school zone time, let alone driving in a school zone, let alone speeding in one.

That said, I did cycle through a school zone just this morning. It was right at the start of the school zone time (literally I think about 7:05 am). There were no children about.

So while I still think speed limits are a good thing and I have no sympathy for people who disregard them, I'm not convinced that it's necessarily any worse in terms of child safety for a driver to have been going 55 then than it would be when I drove down the same street when it was not a school zone at about 12:30 pm today.