Locales should not be open to all users, they should be associated to one or more workflows. It doesn’t make sense that a Germany editor who only speaks/writes in German should be able to create France-French content. In our architecture the locale matches to a country site and we have added a table to limit the locales by workflow that appear on editors for selection and on the login screen.
This shouldn’t be a customization it should be a standard feature.
Anyone else that has multiple languages/country sites agree?