We have the best new scanners (I think they are CT scanners) at our airport. You don’t have to take out anything anymore since their new scanners can scan it anyways, somehow. Apparently you can also take any amount of fluid with you and you just keep it in your bag, which is neat.
I dunno anything about kites but maybe the wind is always strong enough up there so that it never falls.
I would suspect that a ship with these kites has an alternative method of traversal if the kite needs to dry or whatever. If that’s even a problem at all.