But you are assuming people who may have never ridden a bike or have not done so for many years know about road position for cyclists. They may just think that they should keep as far to the left as possible at all times as that is what they were told as kids back in the 60's or 70's. So when they are driving along and a cyclist ahead looks behind at them and then takes a primary position because they are planning to turn right or something they may think they are just being awkward and get angry. I am all for riding with confidence and claiming the space we need, but that is they key point, the space we NEED, riding positively but not aggressively.
I'm not interested in their reasons for not thinking. They need to come to terms with the existence of other people.