I don’t see anything wrong with profiting from the fact that some people wait until the last second to think of these things. That said, I doubt he’ll sell quite that many boxes.
There’s a Horrible Histories segment you can find on YouTube about real names from the Victorian age. Things like Minty Badger, Scarylooker, Farting, and Baboon. Weird names are nothing new!
I’ve worked in enough nursing home to have my doubts about that saying…