Quoting Julian Andres Klode <jak@debian.org>:
I'd love to, but renting a bike is a lot more expensive than using public transport
BYOD: Bring your own Drahtesel⁺
I think I might walk some times - it should only be about an hour at 10 min / km.
Sure. If there is any problem with my bike, we can walk together. ⁺ https://en.wiktionary.org/wiki/Drahtesel