I grew up in the 1970s and 1980s. Compared to today, just because technology was so different, even if you had a cut-and-dried reason to fight a girl (such as, you and her were dating the same boy). it was SO MUCH WORK to make a fight happen.
If you and her went to the same school, fighting at school [or after school] was out--you would both ruin your future by getting expelled. No chickfight is worth THAT.
And if you didn't go to the same school, then it was almost totally hopeless getting at the same time and same place as her.
Technology was this unbelievably hit-or-miss telephone now known as a "land line". If you called her, chances were her parents would answer. Sometimes, at age 17 or 18, girls could get their "own line" at home. But the only way that worked is if you and her had private lines.
You could roam the same mall as her or get invites to parties she was at. But chances were that her friends would be there with her and you'd get 5on1'd.
Fighting girls in your same neighborhood was easier to arrange. But that made things awkward between the families.
So, fights happened. But as much by accident as by design.
Girls today with Instagram and Snapchat and texting have it easier. (At least, until Covid they did.)