You don't need to bike every trip to reduce your reliance on cars! Even if you replaced solo trips in the spring and summer with a bike, for many people this ends up being a big reduction in car use... which isn't only good for the environment and your health, but reduces car wear & tear.

If you're not interested enough to invest in an ebike, an escooter is a good way to try... though it removes the exercise element and restricts you to what can be carried in a backpack.