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.
I tend to think that eventually they will only have fake long nails, and only when getting dressed up for something fancy.
I'm general in the future teens will make memes about long nails like they do now for something like the hamburger phone, or JNCOs, or whatever 00's trend.