It's a western thing. Like if something were to happen to the parents and there is no family left to take care of the child, then the godfather or godmother raises the chils as their own. A godparent is usually a very close unrelated friend.
Bu ya Allah, he's adorable. May God bless him and his parents for years to come. Please say a dua for my friend Daniel, his wife, Jessica, and son, Ron.