Is it alright to wear tights without panties under miniskirts? *No guys pls*

The purpose of underwear is to protect you from the nasty germs the outside world has to offer, and I'm afraid that tights just don't do the job. They're thin and sheer, meaning yuckies could still get in and cause infections. I never thought of underwear as being something that's adds to being hot when it's 98 degress with a relative humidity of 99. And what happens when your skirt rides up or you get out of a car or if you forget to cross your legs? The whole world will still get a show. Always always always wear underwear unless you're in the shower or in a swimsuit.