I've tipped beautiful women like I have tipped old men. If you can do your job then you get a tip.

Seems like people do a lot of projecting.

It's crazy to think all patrons are pervert men and all wait staff are sexy naive little girls.

It's ok to just admit you have never been to a restaurant, it's easier than sounding like some sort of Jack ass.

I'm a below average looking male and I worked in the restaurant industry before tech, both in the kitchen and front of house (serving, tending bar, management). When I served, I'd walk away from an average evening with a few hundred dollars in cash. I'm sure it's easier if you're attractive and flirty, but it's also possible to make good money by being professional.