There definitely ARE men that tip right, and I'm sure the creepy guy who tips the extra hot waitress a ton exists, but my most stable, high tips come from middle-aged women. I really don't know what it is, maybe I just jive better with them, but those 20-25% tips that make up for low ballers comes from women anywhere from 35-65. Men on dates, when they know their gf won't see the tip, tend to lowball me the most. If their gf picks the tab up, it's a totally different story. I even had a guy try to dine and dash, and his gf picked EVERYTHING up. I don't know if this is a universal experience. I don't let my guests know my political views on men, and I'm respectful of everyone, but dudes, in my experience, tip horribly.