I think the main problem is the unwillingness of the vast majority of cyclists to slow down or, God forbid, actually stop and give way to other towpath users. My husband uses a wheelchair and isn’t minded to move into a hedge bottom or onto a muddy verge to get out of the way ... the look of concern on the cyclist’s face is remarkable when they realise they are going to have to be the one to take evasive action! But not a single one has ever stopped, put their feet on the ground and waited for us to pass.