A child of what age is it forbidden to carry on a quad bike?
Explanation
The traffic rules forbid carrying children under 12 on mopeds, motorcycles (except those with sidecars), tricycles and quad bikes of any kind. So any age below 12 is too young.
KET reference: KET 195.3: it is forbidden to carry children under 12 on mopeds, motorcycles (except with sidecars), tricycles and quad bikes of any kind.