Chopped handle bars?

it makes sense to have narrower bars to get through traffic more easily (tight spaces between cars etc), but there is a limit to this. anything narrower than your hips doesn't provide an additional benefit in this regard, cos your hips still have to pass through the same gap (unless you snake through sideways).

so narrow bars = good for traffic, but really narrow = just for looks.

if you go too narrow you lose some control, too.

Exactly. If your handlebars are the same width as your hips, or thereabouts, you can use them like a cat uses their whiskers! Cos at the end of the day, you still need to get your hips through the gap