[pedro_hab]

I wouldn't be surprised if it got worse.

Most people are on phones now, who uses computers if not for work?

But I guess one could argue using phones would be the same, but even then my personal experience is that most people don't know much about phones either.

[throwaway3618]

Phones are pretty bad for the group who are scared of breaking something and so don't just try the first thing they guess.

Delete: maybe tap and hold, then three dots or an (i), maybe swipe right/left/either.

Close an image: probably pull down from the top but not always.

Undo: Shake the phone like an etch-a-sketch???

Whereas Outlook Express, for example, looking at screenshots, had a big red X with Delete written underneath it in the toolbar. And your mouse had a physical button dedicated to stuff that's now hidden away behind long-press or swipe or the (i) or whatever.