If you follow the safety precautions, an electric bike, scooter or motorbike is an easy and cheap way to tour most urban centers. Curious about those electric bikes, scooters and mopeds scattered across city centers these days? There’s been an explosion of electric vehicles-for-hire in cities worldwide, providing alternatives to public transport for getting around town. These app-based options — most with one-word names like Lime and Bird — are largely designed to support locals in their day-to-day travels, but hopping on the e-transit wagon can be seamless for visitors, too. The rapid adoption of these new vehicles hasn’t been without issue. Two years ago, three companies in San Francisco dumped 2,000 scooters on the city sidewalks with neither permits nor permission. Sidewalks were impassable, crosswalks blocked and wheelchairs couldn’t navigate ramps. The city quickly banned the operators and created regulations to better integrate e-scooters and bikes into the transportation infrastructure (Paris is dealing with similar issues after allowing 12 separate e-scooter companies to operate in the city simultaneously, and in New York City, the introduction of 1,000 Revel mopeds ear...