Even when I was a middle school girl, boys had this "joke" about how girls' slumber parties were really just about "practicing kissing" and pillow fights. So often, these troons talking about their poor sad lost girlhoods have no idea that they're illustrating exactly what boys thought girlhood was, not girls.
Given the average appearance level and social confidence of these guys, if they'd magically been transformed into a girl at age 8, they'd have been the weirdo girl all the other girls ostracized to tighten their group bond during the slumber party, or the girl that they all decided was a lezzie and you should ostentatiously not undress around and titter about every time she mentioned or looked too long in the direction of another girl. If you didn't know that was a thing, congrats on being born with a dick.