This. And I'd like to add: sometimes the best icons are these little characters called the alphabet. Combined they're very powerful and are called 'words'.
It really is a very good point.
That's what I get for installing an app that describes itself as "beautiful".
Just big buttons with words on them. Words become symbols and do at a glance you could still easily tell what everything is even if you wouldn't actually read it when using it.
I’ll be illiterate in that world, but my kids seem to grok it.
The issue with emoji is that they're very literal.
Or a cloud to mean "upload", or a thin moon crescent to mean "sleep".
These are things that don't derive from the real world (any more) and must be explicitly communicated.