Also a huge number of people in the US travel to places that are walkable:
- Disney World
- Las Vegas (The strip is anyway)
- DC
- NYC
Also Disney is not designed for public use. It’s built to extract as much money out of you without leaving their property.
Vegas’ strip is like 1/10 the size of Disney World and had zero central planning, commercial or civil. The individual properties are designed the way you’re thinking but that’s a footnote by comparison.
Disney world is 40+ square miles of engineered profit-extraction entirely managed by a single proprietor. It’s a very hefty case study in commercial and communal design.