The use by many people of isolating headphones or earphones when it is unsafe to do so is an important issue. If this continues, laws will be passed restricting headphone(and earphone) use by pedestrians. I don’t want to lose the right to walk around(through traffic, etc) while listening to music. Those who do it irresponsibly though may cause problems for the rest of us.
When I am walking around outdoors, I use earphones with ear hooks which don’t isolate, and keep the volume low.