> Bicycles have had gears for almost a century, and they allow to tackle hilly areas easily.

Assuming everyone but you is retarded.

Not at all. I simply suspect that you are uninformed about why cycling is popular in the Netherlands. In the 60s the Netherlands was just as flat as it is today, but it wasn't a cycling paradise. It all changed with the campaign "Stop de Kindermoord" (literally translated as "Stop the Child Murder"), which began in 1972.

https://en.wikipedia.org/wiki/Cycling_in_the_Netherlands#His...