Yes I do

Some may not like it because they deem it blocking their situational awareness and noise perception. Not an issue for me.

No I wear both. Just dont set the music too loud, just enough to hear the music and it don't overpower everything. Vehicles are usually very loud so just make sure your music isn't louder than them.

But I still can perceive my surroundings because I regularly turn my head around left and right to check my back while riding on the road. In top of that I occasionally wear a mirror on my right wrist too. Both are habits from me riding motorcycles

good morning and have a good day, nearly a year i didnt ride my 20" folding bike!
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try aftershockz or anything with ear bone conduction type of earphone. u can hear the traffic, while listen to ur favourite songs.