Example of how government screws up everything.
They make a subway system. They conclude they don't want their people handling money. They make tokens. The tokens can be counterfeited. So they make a law making it illegal to counterfeit. But that is too hard to enforce, so they simplify the enforcement by banning the sale of tokens.
If you can't sell a token, you can't make enough money to make it worth your while to counterfeit them.
Makes perfect sense, just like the law that gave farmers a tax break by including HUGE trucks from depreciation rules (Government makes taxes, then decides tax code is a good way to encourage business, makes a depreciation tax credit, business gives their executives really nice cars, government thinks that's bad, takes away credit for vehicles, farmers complain because they actually USE vehicles for business, congress puts big trucks back, Auto companies build huge luxury trucks for professionals, they buy them and depreciate them for business tax.
Then Bush comes along, accelerates business tax credits to spur the economy -- and he is accused of favoring his rich buddies giving them a tax break for Hummers.)
Are you an accountant by chance?