Well thought out piece, nuanced and thought provoking. You provided a good thought experiment with the bit about someone trying to get your attention while you're listening to music.
I think even as a guy I would be uncomfortable with someone tapping me on the chest to get my attention, it just feels very aggressive. Maybe it's a relic of evolution and wanting to protect our vitals? If someone tapped me on the throat to get my attention that also would be VERY uncomfortable.