Do you drive a lot? Drivers are very used to the audio disconnect.

Before I did my licence I was a firm believer in "no earbuds on the road", but after a few driving lessons I got so used to taking in the traffic situation with eyes only that I quickly converted to an earbuds all the time cyclist. A few years later I stopped driving so much and my cycling reverted to ears-always-open without me even noticing.

I drive regularly. Yes, there is some degree of audio disconnect in a car. I also have various mirrors and sensors of various types. And I'm hopefully paying more attention than if I'm just walking around.

You are also a lot less squishy inside of a car.