I know that slaves were often required to go barefoot including in the Roman Empire, but whether it was an actual law or just custom that was enforced by those who owned the slaves, Im not sure.
To have to be always showing your bare feet while everyone else had shoes on was considered embarrassing and degrading.

When I was nine, my parents took me to Fiji on holiday.
Everywhere outside the main towns, the Filians went barefoot.
They had calluses half-an-inch thick on the soles of their feet.

based on archeological evidence, our earliest hunter-gatherer ancestors took a long time to invent shoes. They too would have had ultra-thick calluses on their soles.

I'd expect that idea of the symbolism of shoes would have quickly developed. But a slave who successfully escaped into free territory
could soon acquire or make shoes, and within six months or so the calluses would slough off.

Why are you reading that stuff anyway?

I just scanned a Wikipedia article about slave codes that were enacted in the Americas, France, and Spain, and there was nothing about shoes.

Slave were required to wear tags. AND...
". In 1680, Virginia passed Act X, which prohibited slaves from carrying weapons, leaving their owner's plantation without a certificate, or raising a hand against "Christians". "

Makes you think, doesn't it? Why does our government wish us to give up our weapons?

In recent years, every claim in Wikipedia has needed a supporting reference. If there's no reference for this claim, then it's definitely suspect. If there is a reference, perhaps you could check it out.