I guess you have never managed a restaurant - when I did, the Lady's room was always MUCH worse then the Men's room. And this was in a high-end joint. And judging from college dorms I have seen, the girls are as bad or worse than the boys.
I have seen some nasty, nasty, nasty stuff in female public restrooms. At home, it’s the opposite. My husband is the messy one, not that he’s especially messy.
I hate public restrooms and have excellent bladder control. My husband is amazed that when we go on long trips, I can go the whole trip w/o needing a pit stop, while he has to stop what seems like every hour.
Years ago I had a job at a paper warehouse. To get a bit more money for college I took on the job of cleaning up the office before regular work time. Included in the office cleanup were the bathrooms. It was a surprise of my young life the first time I went into the ladies room. There were piles of tissues with all kinds obnoxious stuff. Lucky for me my job ended when called for the draft.