I tried learning kite surfing years ago, it's hard, needs a lot of practice...(forget 1 week advertising lessons, it's for tourists to get them hooked and get their money), was a lot easier doing windsurfing for me though..., I like to give this a try, but the body might refuse to cooperate now...! 🥴
This is all a rage around the world, they call it wing surfing mostly. But the foil that lifts up the board from the water helps a lot, for both this and kite surfing, to reduce stress on the knees. The board does not hit all the ripples and waves on the water and the foil has contact smoothly under the water (well, unless some guys like the waves...). Though first have to get to speed to get the lift...!