It’s a matter of a moment. You’re walking down the sidewalk, thinking about your things, maybe you look at your phone, and suddenly there’s something in front of you. It doesn’t matter if it’s a bollard, a person, a kiosk or a baby stroller. You have to avoid it, you have to do it now. Now. And, probably, you are going to the left. And it seems that you decided it, but that decision was already made long before that walk down the street.