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I think this is true of all off-road shared paths. For example I try generally to stick to 'drive on the left' but it mostly feels like I am the only one. Peds right across the path, or peds meandering from left to right as you are about to pass, dogs everywhere.
Still much better than people in several tons of metal close passing, shouting abuse and sometimes trying to kill you.
I do a bit of canal as part of my route and it's definitely the most stressful bit. There's no "convention" that everyone follows so you have to be awake and alert enough to react to every unfolding scenario.