Kite flying for the kids at church. If it is too windy it won't work well. Trying to catch a slightly windy day and access to kids will be a very hit and miss. So, on a non windy day, I know from my younger years that the air flow and movement of air is above the ground. If you can run with the kite string until you get the kite high enough it will progress higher.
So on a non windy day how many feet high would the kite need to be before the air flow takes the kite to higher levels. I once had a kite so high you could barely see it with the naked eye.