Is using headphones on a bike with music on or not somehow different from driving in a Lexus with music on or not?
When riding a motorcycle, you’ll encounter people that don’t see you almost every trip. The same is not true in a car.
Riding a bike is just a 100% engagement thing with higher risks and lower margins for error, for all kinds of reasons. And it’s not just traffic, minor pavement imperfections become relevant, the necessary skill floor is also higher. It just demands more attention, straight up.
In a car, you shouldn’t, and it’s not without risk, but you CAN occasionally get away with minor distractions: adjusting the radio, seat, etc. That just doesn’t work on a bike as well. I’m failing to properly articulate the why, but it really is fundamentally different in some ways. I’ve spent many years doing both, and the bike just demands more of your attention resources, independent of your vulnerability in the event of an accident.
A motorcycle demands your attention because the risk is mostly on the rider. Drivers are pacified by how externalized their very existent risk is.
This is to say - I am aware of the dangers:) My state doesn’t even have a helmet law for motorcyclists.
All the assertions I'm seeing in this thread are bizarre to me. One can easily hear a siren over noise cancellation and over wind noise, and it's even easier to hear if you have noise cancellation for that wind noise.
As a related example, when I'm on an airplane and I have noise-cancelling headphones on, the pilot announcements are easier to hear than without them.
As I mentioned in another comment, on an airplane, my airpods in ANC mode make it easier for me to hear announcements.