Battery swap appears to make sense for scooters. Taiwan moves on scooters, and Gogoro is the e-scooter leader in Taiwan. So there is a success story for battery swapping. But it took many years for Gogoro to build up a swapping "vending machine" network and for customers to gain confidence in battery swapping.

OTOH almost everything - cost of batteries, no heavy lifting, unattended swap stations, etc. - is easier for scooters.