Do you ride the subway or train with the kids?
I used to commute by subway and then train for years, and would always try to be careful of the gap between the train and the platform. There have been a few times I witnessed somebody’s shoe getting caught in the gap.
It really is a quite narrow passage, so you’d think no one could possibly manage to wedge themselves in there?
But it is quite possible, and it happens more than you think.