Kite Pro-Tip: Avoid Crashing!: It seems so basic, but it still needs mentioning because people are not all kiting safely. It is the responsibility of every kiter to Avoid Crashing. This means that if someone is in your path, you must do what ever you need to do to avoid crashing into them!
So there are actual Rules of the Road, and an etiquette, but the Number One Rule above all others is “Avoid Collisions at all Costs“. So this means that if there is someone in your path water-starting, then you must Stop or turn around to avoid a collision. You cannot keep coming and hit them or their kite. Every kiter needs to develop a sense of spatial awareness, and know exactly how much room (and time) they need to maneuver around obstacles and especially avoid tangling kites too. Keep in mind you also need a margin of safety as well, because you cannot “scrape by” super close to people with only a few feet to spare and say you are kiting safely. Never endanger another person, so you should not attempt to pass by other people in an unsafe manner. Learn how to stop quickly and turn reliably so that you can always take the necessary steps to avoid collisions, and crashing into other people. Always be prepared to stop, and wait until the way is clear. Never proceed if the path in front of you is not clear, SIMPLE.