I think the key to safety for bikers in the Netherlands is simply the sheer number of them. When you visit the Netherlands. Within 15 minutes you have gotten used to scanning for bikers everywhere. There are so many of them and they come so frequently that you cannot not get into the habit of looking for them. The importance of numbers is something often overlooked. I read an article discussing the different approach…
Cultural importance too. When so many people you may know are bikers, including you, you might empathize a lot more with them rather than see them as anonymous frail annoyances to pass.
When I turn right I always check my right mirror. This is not something I was specifically taught, this is something I do because I also bike a lot and am often on the bike lane on the right.
(yes, the design of the lens is such that this should not be an issue but a lot of cyclists will still stupidly cross the crosding instead of following the U shaped path)