You're talking about a consumer luxury product as though it's being marketed as a food staple or some other necessity. It's not. People get these things because they think it'll be more convenient than the alternative.

As a comparison, I didn't really consider typing in my phone pin every time I wanted to unlock my phone a disaster. But now that I've got Face ID and it works reasonably well (yes I know not everyone feels that way) it'd be annoying to go back.

You can critique the current implementations but when someone comes up with a good ecosystem to integrate with these products will gain steam.