When I traveled throughout Europe and Asia, bikes often outnumbered cars, especially in downtown areas. Huge loads could be carried on bikes, even whole families rode along on a single bike. It was odd to see a pig or a goat on a bicycle and no one seemed to notice, except we US travelers.
"Most of the world's electric bikes--especially the 30 million produced each year in China--still use lead batteries. In China, lead production has caused mass poisonings, and recycling often causes even more problems when toxic wastewater is dumped in rivers. Though alternative batteries are becoming more common, they also have their own issues with manufacturing and disposal."
I haven't been on a bike for at least 60 or 65 years; perhaps I should start with a tricycle.