Makes no difference on gender, age, ethnicity. I've seen the entire gamut going slow. No one in my family does it(if they did, I'd give em an earful), so I can't ask why. I rode (in a car) with a driver that did that and I felt so uncomfortable I wanted to jump out of the vehicle. I didn't ask him about it because we wanted to sell him a system. Didn't want to **** him off.