Not to take away from your post but the trick to riding a bike is not to go slow. The faster you go the easier it is to balance.

Just like walking a tray of glasses, if you slow down (especially abruptly) the change in momentum can topple some, but keep moving and 'she'll be right'.

I get that your not into the idea of biking. For the sake of the environment I want to mention that I live at the top of a hill where the first soap box derby tournament was held. If you've ever seen one of those, it's a pretty steep hill they race down. My ebike goes up it with no problems other than from cars on the road. I don't even have to pedal, I just push a little lever and up it goes. This city is 5th highest in murder rate in the U.S. and auto thefts are just as bad but a good lock and smart parking helps. Oh and I have all the balance of a newborn kitten on a pile of fresh laundry.