fleet fraternization

how common is it to see fraternization between snco’s/nco’s and JE or any other combinations? i know it’s a comedy show and ill probably get clowned for it but there’s this one episode on VETtv where there’s a female gunny making suggestions towards JE and i was just wondering how common it actually is to see this out in the fleet? i’m currently at my school house right now so i wouldn’t know lol

edit: no i’m not “asking for a friend” i’m just genuinely curious since when i was in bootcamp it was something that they kept mentioning, plus literally every safety brief ive ever had includes a brief about fraternization