Attempts to enforce a single method of writing one's own name largely fail.

In a parallel context, there are many Latin American people who have a single first name and two family names -- one from their mother and one from their father. Life would be simpler if all such persons would agree to write their names with a hyphen between the family names, e.g. Esteban Mendoza-Gonzales. In this case, all such folks would appear in alphabetized lists (like telephone directories) under M. Where no hyphen is used, English speakers are prone to treat "Mendoza" as a middle name and alphabetize the person's name under G.