There are cultures at which a coming of age ceremony involves assignment of a name, either in addition to existing ones or replacing them. https://en.wikipedia

There are cultures at which a coming of age ceremony involves assignment of a name, either in addition to existing ones or replacing them. https://en.wikipedia.org/wiki/Courtesy_name https://en.wikipedia.org/wiki/Courtesy_name and http://www.samurai-archives.com/names.html http://www.samurai-archives.com/names.html and https://en.wikipedia.org/wiki/Confirmation#Confirmation_name https://en.wikipedia.org/wiki/Confirmation#Confirmation_name are some examples.