Ideally, a human should keep forever the family name used at birth and the parents should choose one of their family names for the children. I prefer the Spani

Ideally, a human should keep forever the family name used at birth and the parents should choose one of their family names for the children. I prefer the Spanish way, have two family names. We have been doing it for centuries, it baffles me that other countries find it so difficult to adopt a similar system.