It is not as simple as that. Unlike roads which are mostly deadlock free (of course with some exceptions), going around in Amsterdam canals can be extrmely tric

It is not as simple as that. Unlike roads which are mostly deadlock free (of course with some exceptions), going around in Amsterdam canals can be extrmely tricky. There are big tourist boats that are way too big for the canals, so you have to move out of the way when they turn. There are plenty of bridges where only one boat at a time can pass. And there is no requirement to keep right on the water. Going on bigger water is also not easy. Ferries accelerate very quickly when they depart and have priority over small boats. For bigger boats, you have to assume they cannot see a smaller boat and if they see one, they cannot brake or change course.