To be clear, I still own a car. While I might wish I were hardcore enough to live car-free, I’m not. But instead of owning two or more vehicles (like most American households do), my family now just has one. We bought the RadRunner Plus from Rad Power Bikes after we sold our second car, but I should note that two factors made that move feasible: My husband and I both started working from home, and we moved to a neighborhood that’s only a three-minute walk from our kid’s school. So if I...