[vidarh]

Emojis have universal appeal. Coding symbols doesn't.

Math symbols are a better example, but also extremely well established, and it's still taken a very long time to get widespread support, and it's still far from universal.

But note that non-ASCII symbols etc. was an example of the difficulty of even getting support for something "that simple". Now try to take the step up to e.g a node-based editor.