Earlier quoted context omitted.
> I felt safe and drivers were respectful and patient when passing. A large part of this, from what I've observed living in Canada and the Netherlands, is the different perspectives borne out of each culture. In the Netherlands, everyone grows up having been a bicycle commuter. It's how every child gets to school. So everyone has been a bicycle commuter for at least some period of their lives and can sympathize with…
I lived in the Netherlands, England, Ireland, and New Zealand; England and Ireland are not "bike countries" either, but for the most part it was actually pretty okay cycling in the city: there are enough cyclists around, roads are small, and most people understand that the limited space needs to be shared. New Zealand, however, was a different story. The roads are huge, US-style, and a significant number of cyclists…
Oddly, the use of helmets may alter the perceptions of drivers opposite to what you suggest. There have been a couple studies showing that drivers, when seeing a bicycle commuter wearing a helmet, give that bicycle rider *less* room upon passing, compared to a bicycle rider who is not wearing a helmet.
There's a good summary of the observed effect which also provides links to the published research:
https://www.bicycling.com/news/a25358099/drivers-give-helmet...