I drive at least half a dozen different cars per week on journeys long enough that I need to make or take calls on my mobile.

If you want to pay for one to be fitted in each car, be my guest

I agree, people wearing them look like Lobot from Starwars and should be openly mocked when they're not in a car.

Personally though, I couldn't care less what people think of me and I'm not arrogant enough to think that anyone really cares what I think of them either

Which is why I DO openly mock people