How does the manual rickshaw run without differential?

How does the manual rickshaw run without differential?
Its wheelbase is narrow and its wheels are permitted to contra-rotate and operate individually.

A differential in cars is used to prevent one wheel dragging the other around a corner since the inside distance the wheel goes is shorter than the outside distance.

The power from the engine is applied to the wheel of least resistance through the diff.
A rickshaw is basically a cart with two independent wheels, so the outside wheel on a turn is free to run faster than the inside.

Four wheel drive cars which apply power to all wheels at the same force, tend to rip up tyres as they drag the outside wheel round corners with a locked differential. This is why many are switchable from locked to unlocked to go between maximum grip and minimum tyre wear.