Feels definitely dangerous to me on the road, but also on the dirt if I'm doing anything even slightly technical that requires mental clarity. I'm just not 100% in bike zen mind if there's music playing in my head. And even out in the woods, I still like to hear what's going on around me--just seems way safer. As for others, I don't care what they do as long as they don't endanger me, or, use a speaker and force me to listen to their music out there!