Cute comic, but for the unaware:
According to John Ciribassi, DVM, DACVB, the problem with laser pointers is that they lack an endpoint. Nothing is ever physically caught. Even if the cat is “successful,” there's no reward. Such pointless play, says Dr. Ciribassi, can cause some cats to develop a compulsive disorder.
https://www.dvm360.com/view/laser-pointers-can-cause-behavior-disorders-cats
My guess is it's for the women's restroom because when bathrooms are busy, most women just wait for a stall door to open and don't always bend over to look under the doors to see if they're even occupied. It's also probably hard to see from a distance if the stall is occupied or not and nobody wants to be the one to shamefully walk back to the line because they had to get closer to check.