> The paper suggests biking only 118 days per year. The car ownership costs are not "saved" - the projected savings are wrong.

Were does it suggests that? The number 118 doesn't appear anywhere in that document.

> Ownership car costs are 0.167/km and savings by riding a bicycle are 0.349/km.

Where do you get these numbers from?

> carrying capacity (groceries, children, sports equipment, etcetera)

I do all grocery shopping for a family of four with a cargo bike. I pick up and drop off children in the cargo bike. You can think up objections all day if you want, but that doesn't change the fact that some people succeed in living car-free.

Nobody is forcing you to take a bicycle. Even if you personally don't like cycling, you should still encourage others to: every cyclist you see riding around is one less car stuck in traffic with you.

> And I'd like to see other costs of cycling (wet weather gear, helmets, locks) included.

Then you're in luck. On page 24, they include a budget of 117 EUR for gear and accessories.