Matthew asked, "Graviman, would there be any pressure on the front of a kite? If not, why is it harder to hold the string when there is wind?"
Graviman answered, "...The flow over the kite requires wind so the total stagnation pressure is higher than atmospheric..."
Or more simply, yes.
Your answer is not why a kite flies. It is one way of describing it. There are many ways to describe these things.