Old men ride bicycles. They ride these old style bikes with complex and very long front forks. Younger people usually ride mountain-bike style bikes. Travelling salesmen prefer bicycles to motor bikes. I have also seen rolling bakeries and chicken coops on bicycles.
Kids like to ride adult-sized women's bikes.
Some kids trying to ride these bikes are so small their necks are about seat level. I don't think they can use the brakes. The main roads are shockingly smooth, smoother than NZ roads. No repair has ever been done and these roads are absolutely awful because of the remnants of pavement. A dirt track would be better.