I had first seen the e-trolley in Singapore being rented out to tourists in the Esplanade area near the Merlion. I was really amused because it's a simple trolley with 2 wheels that has an engine run by a battery. That was years ago. And now I have been seeing the e-trolley here being used for commuting. Mostly used by the younger generation, I think the trolley is better than the foldable bike because the trolley is lighter and also can be folded. Have you used an e-trolley?