What other companies have unique optionally-registered serial numbers for warranties? My lawn maintenance equipment (Ego), my luggage (Briggs and Riley), and my wine glasses (Waterford), off the top of my head. It’s not uncommon, and, again, optional.
To be fair, many humans have a specific mutation to allow it, so it being rare is kind of irrelevant. Few animals have broken vitamin C synthesis, but nobody gives us shit for eating citrus.
The title is worded in a way that implies it’s a gendered issue, so asking for more information about the gender divide is appropriate. I appreciate that other replies have given the numbers to back up the extent to which it’s gendered.
Hrrrrm