I often think about the right left front back brake situation. I ride a bike pretty much every day to some extent or other, without checking I have no clue which way round the brakes are, something inside me knows how to brake properly but it's not something I am conscious of.
I had a Gazelle for a very brief period which had a combination leaver you could access from both side but which applied the back brake ever so slightly before the front automatically. Supposedly so you could hold your umbrella and brake at the same time.