I doubt that Venezuelan currency is accepted in Colombia. I’d marvel at the prospect of anyone even offering an exchange rate, given the wild inflation. These Venezuelans crossing into Colombia to buy staples must have other currency, or they’re selling something to get it once there.
The story isn’t complete without knowing how these people voted in past elections and whether they were part of the mobs that helped put the communist Chavez into power. I’m sure there were many Germans who voted for Hitler who had buyers remorse in the aftermath of WWII.
Pawn shops on the Colombian side must be making a killing.
silver / gold