Why do slow walkers swerve and drift?

[RAMd®d]

Fast walker, I weave a little when walking unless I pay a lot of attention to it, which I sometimes do, but only when passing or among others.

But in really nice weather I opt for casual perambulation, big time.

I need better, softer soled shoes, but I can stroll for hours.

Not that I've ever been on the Stroll.

That's not how I roll.