In the US, most chocolate companies now ship in a Styrofoam cooler with dry ice in the bottom, and you have to get 2 day shipping or faster.
There's no laws about it or anything though. The reason we make crap chocolate is because it's cheap, has a higher profit margin, and kids don't know any better. Then of course if you've grown up on it, why get anything else
There's a small confectionery company here in Belfast, who have cashed in on the whole 'Troubles' thing, and now offer Falls Road Chocolate (Mint crisp in a green wrapper), and Shankill Road Chocolate (Orange flavoured in an orange wrapper). Both feature scenes from the 2 roads on the wrappers