This is only because of the outsider perspective : everybody learns to ride a bicycle as a kid ( as early as 4-5 years ).
Also children about 11-12 years old bike to their schools unattended, sometimes 15km each day. Parents would not allow this if it was 'absolutely crazy'.
It was a light hearted comment from the outside perspective, not a genuine accusation of mental health problems ;) Cycling in the Netherlands is actually lovely. Flat land, well maintained cycle paths, and beautiful countryside. Plus the thighs! My word!
This is only because of the outsider perspective : everybody learns to ride a bicycle as a kid ( as early as 4-5 years ).
Also children about 11-12 years old bike to their schools unattended, sometimes 15km each day. Parents would not allow this if it was 'absolutely crazy'.