99% of adults have abnormal faces, they all look different!
I find this an interesting take on the story
Tool companies manufacture claw hammers despite some people wanting a nail gun. You don’t try to make a thing flexible enough to be both a nail gun and a hammer.
I’m a power user and I do all of my customization on my Linux desktop/laptop. I use an iPhone specifically because it’s locked down and don’t want a keyboard that has gone through no code review stealing all of my banking credentials.
But of course this assume all variables are independent. Seems like we could actually push the tolerance much lower than this raw math would suggest.