Yeah that's odd for sure. I don't think I've ever heard daddy, dad for sure though. Still weird. I had a Puerto Rican homie from Brooklyn back in the day that called everyone papi and also went by Papi but I just called him Paul because I wasn't gonna call some dude Papi. But yeah he called everyone that, male, female, old, young.. was kinda weird but I was just like whatever. Dude ended up stabbing a couple that tried pistol whipping and robbing him for drugs and getting locked up for it because he kept on stabbing them past a reasonable amount for self defense or some shit lol (and because of the drugs of course too). He was always talking about stabbing fools or slicing people up though so I wasn't too surprised when he did. He should be out soon it's been like a decade. Cool story bro.