I've been thinking a bit about cars & bike safety in general.
We have rules that many of us have learned since childhood, like "look both ways before crossing the street".
We need similar rules,
- "look both ways before exiting a vehicle".
- Crossing a bike lane for a right turn is crossing a traffic lane. Look before making the turn.
- Give 'em 3 feet, 4 feet, 5 feet, 1/2 lane, whatever, when passing, even if they are on a shoulder.
- Vigilance, and understanding bike movements and reactions.
- Look both directions when crossing a sidewalk or crosswalk.
- etc
I learned driving from my parents, but have had a couple of "refresher courses" for one reason or another. I remember important subjects of look-ahead, anticipate road conditions ahead, mirrors, etc. But don't remember vulnerable road users ever being mentioned.