I would expect that people drive cheap motorcycles in such places (and buy gas from plastic coke bottles). Where would they afford an electric car and not a bike? Where do you have roads enough for electric cars, but no gas stations?

Gasoline is expensive, while electric bikes are cheap.

Nepal is an example of a country that is severely petrol constrained, it has to get all its gasoline via India (and India gets it from the Middle East/iran), it’s just not feasible even if you are dealing out gasoline from drums and plastic coke bottles like they do in Thailand for mopeds.

There's areas in South East Asia like islands in the Philippines that are warm enough to not have winter, and so the popular vehicles are covered trikes. On more remote islands, electric is popular because of the aforementioned supply chain issue, and there's also plenty of sunlight to draw from. Doesn't mean that there are no gasoline bikes/trikes, just that electric vehicles outnumber gasoline powered ones.