I just had an issue related to this: my name ends in "Filho" meaning son, to differentiate me from my father. I ran into some stupid company policy where I had

I just had an issue related to this: my name ends in "Filho" meaning son, to differentiate me from my father. I ran into some stupid company policy where I had to be identified by first and last name... Resulting in people thinking my name is "son". The I had to explain that no, son is not a name, nor a surname. It is an adjective, not a substantive, it's sole purpose is differentiate me from my father, when needed. Calling me just "son" makes no sense. I pointed out to that company that if they applied that policy to bill gates, that is names Willlam Gates III, they would end Calling him number three, and it is obvious that number three is not his name. Then there is the fact my "middle" name that matters. My first name was just to honor a famous catholic priest and is not even a valid word in my native language. Nobody calls me by my first name... unless there is some bureaucracy somewhere, then they insist on calling me by my first name, and son as my surname.