I feel like I used to see a lot of women with super long nails struggling to use their touchscreen phones. I'm sure at least some of them have chosen slightly shorter nails to make it easier.
thing is, for my dialect of German, autocorrect is less than useful, so for me, typing Bavarian on a phone keyboard is certainly the fastest at around 150 wpm, trumping english or german on any other board, probably because it exactly matches the way I speak and I've been doing it for 13 years