Okay, so Hamza is a name that people can give to their babies or children. It's kind of like how Mommy and Daddy have names, but Hamza is a name for someone else.
Some people might like the name Hamza because it's an Arabic name, and they might speak Arabic or have a connection to Arabic culture. In Arabic, Hamza means "lion" or "strong."
But even if someone doesn't have any connection to Arabic culture, they might still choose the name Hamza because they just like how it sounds or what it means to them personally. People have lots of different reasons for picking names for their kids!