Not actually these kinds of experiences - but different scenarios / situations where I was always excited if could „at least“ hear females pee (preferably desperate ones!) - and yes, concerning my age back then - same for me as for you!
80s child here too - but at the same age I was always most excited when I could hear females pee! Be it guests at our home or „anywhere else“, where I got lucky to hear it!! 😊
I am wondering if there are any people that grew up in the 1960s or 1970s where women would be coming over for get togethers, and use the bathroom. At the time I was like 11 or 12 and hormones starting. The bathroom was next to my bedroom so I heard a lot. Enjoy talking about and thinking about those times.