never said they're no use for cars
I ride a scooter all the time and I defy anyone to get on the horn in a genuine emergency stop, suspect that's exactly the same for a bike too, the only noise you get for a real emergency is tyres skidding
if you're breaking as hard as you can, there's a certain amount of steering to take care of
I hear the responsible restrained users, most of these zound threads have people posting about how loud they are and how much they startled and/or frightened other road users, one of the first posts on here was such a post