I've been paying attention to my surroundings a bit more lately, and it's _shocking_ how many people don't even bother using hands-free technology with their phones. I frequently see people holding their phone 6 inches from their face, presumably on speaker phone (but probably using it more actively than that), which blocks a good 50% of their windshield.

Even before I had a car with bluetooth capabilities, if I _needed_ to make a call on the road (which is already a very high bar), I would use the voice assistant to place a call on speaker phone and talk loud enough that it could catch my voice from the cupholder.