[WalterBright]

> The common answer is that you don't need carting wheels without drafting animals

Considering the large stone structures and pavilions they built, they sure could have used a wheelbarrow.

Their "roads" were impassable by wheeled vehicles, but I suspect that passable roads were a consequence of wheeled vehicles, not a prerequisite.

[taeric]

I agree. General consensus is otherwise, though?

Thinking more on it, I confess the "they had wheels in toys" is actually more confusing than not. I would think it common for toys to mimic non-toys.