Im of the belief that You certainly can. It just shouldnt be Your Primary Tool.Sounds like a humpback whale in the background...
So much for all those who say you cannot use high kicks in self defense situations.
And things like Spinning Heels are very hard to block if You havent specifically learnt how.
Wouldn't have been my personal choice because I like my crotch and he was begging to be punched in the mouth just as much as he was begging to be kicked. My personal SD philosophy is, waist or above, hands, waist or below, feet, with the waist being the area of overlap.
I'm not criticizing the guy in the video; I speak for myself only, as I don't consider my own high kicks to be all that good.
Im of the opinion that it depends just as much on what kind of High Kick. Ill be the first to denounce High Roundhouse/Round Kicks, but High Front Kicks, Side Kicks, Back and Spinning Heel, and probably Jump Spin Crescents happen to be a touch harder to stop in their tracks. Not as hard as the same thing to the midsection (Save the Crescent), but still.