I have a Bell, and I use it, but I’d estimate perhaps 10-15% of walkers pay any attention to it, obviously a fair chunk of walkers are ipoded now and hence oblivious to that little ‘Ding, the others are either chatting as they go (Fair enough I suppose) or are simply deaf as a post…
Of those that actually hear it 50% calmy get out of the way and the other 50% panic, dither and piss about requiring you to accomodate their general uselessness by slowing/stopping…
Get one and then at least you’ve already won the argument with the belligerent fool who likes to ask why you don’t use a bell, before they can even start…