Why do guys like being called "daddy"?

I've been in US from Asia for about 3 months. I started watching American culture and couple content on Youtube and I got the impression that many guys here like being called "Daddy." As far as I know, we don't have anything like this in my country. It's just so weird..

And so far I've slept with two American guys, and they both kept saying "Good girl" a lot. One of them said it almost obsessively saying stuff like "your body was made for daddy's cock" which was super weird.

I felt awkward asking my friends about this and I've only watched porn once in middle school so I'm genuinely curious if this is part of the culture here or not..