Use get_*_display
When a field with choices (example : state for user) is retrieved and displayed in template, we should use get_*_display instead of something like https://gitlab.federez.net/re2o/re2o/-/blob/master/users/templates/users/profil.html#L287 (if, else structure)
For this example https://gitlab.federez.net/re2o/re2o/-/blob/master/users/templates/users/profil.html#L287, the correct way to display is
{{ user.get_state_display }}
There might be some other templates to change.