[CalRobert]

When I tell folks in the US my bike has a bell they say "psssh like a car will hear that" they always seem surprised when I point out it's more of a polite alert to people walking. Because who walks, after all?

Also without the constant deadening roar of internal combustion, bells are fairly audible.

[JBlue42]

That's interesting. I always assumed it was because of social perception here in the US that bells on bikes were for kids.

The background soundtrack of my time spent in Amsterdam and Copenhagen is that have bike bells ringing.

[DoreenMichele]

I mostly walk. Most cyclists either give no warning or they yell something like "On your left".

I would be thrilled if bells were in common usage.