Anthony Howard is the owner of Driver's Edge Driver Training and has been teaching driver's education since 2010.
One of the core competencies of defensive driving is the management of the risks that we all face out on the road. In class we teach students to drive in such a way as to assume that all others on the road could at any moment represent a danger to the driver. I teach my students to manage this risk by developing behaviors and attitudes that range from managing the space around them in traffic to choosing when to not drive. I don't think that an overabundance of caution is a bad way to operate, in general.