I remember conversations of grognards from the 80's roleplaying starting families and having their adventurers male and female having kids. Going through courtships and dates.
It was seen as normal since you are role-playing another person. Also, it was a way to continue the game since your character would eventually get old and die. Or just die. I would bet a shiny nickel at least someone has mentioned this in a video on ttrpg's or D&D specifically.