That requiring cars which should be silent to make noise is stupid, wasteful, and pointless? If you can't see a 5000 lb object the size of a car coming at you, no silly noisemaker is going to make any difference to safety, but will make a big difference to the annoyance factor of being near (or in!) such a vehicle at low speed. Traffic jams need not be noisy to be safe. Modern ICEVs are relatively quiet compared to the gas guzzlers of yesteryear too.
You could argue that it benefits blind or visually impaired people, and to a point I might be willing to agree, but they also know that they have to be extra careful where normally sighted people don't have to worry as much, and the majority of 'blind' people are not actually blind, but vision impaired, and can still discern large moving objects (like cars) from the background world around them.
Bottom line: People should not walk into places cars could be, like parking lots or roadways, without actually looking for cars and ensuring that they are not walking into the path of one. Like your parents taught you when you were little, look both ways before you cross the street.
