how do I expose the user groups in a public registration-form in joomla?

Question

When creating a new account from the front-end I'd like the user to be able to choose a user group in which to register (joomla 2.9). How do I expose the groups I created in the back-end into a registration form, for the users to choose one when registering? Thanks.

Answer 1

Well, you can just add the field to your form but the problem is that you would not want to show all of the groups since then people could select super admin or admin.
So what you need to do instead is make a custom field that is more selective.