If motor vehicles were banned worldwide, it would have a big impact on how we move around. Traveling between countries and continents would become more challenging. But don't worry, humans have always found ways to adapt. We might start using animals like camels, horses, and bicycles for transportation. And who knows, maybe new inventions will come up too! The economy would also be affected, as transporting food would take longer. But hey, we have bicycles as an alternative means of transport. They can be used for longer trips too. It's interesting to think about all the possibilities.