There's a lot of amusing YouTube videos of tourists attempting to holiday there without a car, here's a good one: https://www.youtube.com/watch?v=LEAVSGYuhCY
This sort of thing exists in Europe too, try walking out of an airport sometime, you can in some countries, but e.g. in Malaga I had to run across a highway because there was literally no way to get out of there otherwise, there simply aren't any footpaths.