If your edition provides access to these settings, here’s what you could do:
Activate these Site Settings:
- “Use name for username suggestions”
- “Show signup form username instructions”
Then edit the contents of the Site Text js.user.username.instructions to be something like “Please base your username on your real name.”
Mine currently looks like this:
…resulting in:
You might also want to be aware of the Site Setting “Prioritize username in UX” which is enabled by default:
And it is possible to completely hide the username field with some custom CSS (which would make the Site Text label irrelevant). But it feels like that could be confusing to the user. I’d test this before committing to it:
.input-group.create-account__username {
display: none;
}