A fair summary.
Yes, I'd happily give my bank card and PIN number to a stranger, if 0.2 of a second later I can take it back and give it to another, again for 0.2 of a second, and then another, and so on.
I've filtered in London, kudos to anyone who does it daily, car/van drivers there are on a different planet to the rest of us, their lives are so important and so busy that driving is probably 5th or 6th on the list of things they're doing at the wheel. I filtered past a woman in a BMW who was on the phone, smoking with the other hand and checking her hair/makeup in the mirror, all while moving.