Second this. I learned to use mirrors and look over your shoulder as you open the door. Like you would if you were to take a left turn. Basic situational awareness.. This whole "Dutch reach" thing sounds more like something written for the internet points.
As for the whole helmet thing, they do not make you more safe. Proper infrastructure makes you more safe. Unless you're riding downhill, racing or performing stunts. You don't wear kneepads when you walk down the street do you?
As for the whole helmet thing, they do not make you more safe. Proper infrastructure makes you more safe. Unless you're riding downhill, racing or performing stunts. You don't wear kneepads when you walk down the street do you?