Do you feel "less connected" to the world when you are riding with earplugs in? Does it make it feel more dangerous you might be less aware? It makes sense to wear the plugs, but I've never heard of a street rider doing it.
Definitely does not feel less safe. Plugs don't "disconnect" you, they just take all the sound down a few notches. The exhaust noise, wind noise, and other traffic noises are all still there, just not so loud and insistent.
I'm completely convinced that they make me safer on long rides, because you arrive significantly less tired - works great on planes too, I won't fly without earplugs any more.
