system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is milk chocolate made in North America so vastly different from milk chocolate made in Europe?

I have eaten milk chocolate from Hershey and milk chocolate from some strange Swiss chocolatier and they were so different. I cannot even describe how much so. The Swiss chocolate was not even a 'name brand' there like Hershey is here in the states so I did not even get high quality chocolate. Their low quality chocolate tasted better than our average/mid quality.

I went onto Wikipedia's entry for chocolate and it turns out that the US and Canada and Europe consider milk chocolate to mean different things in regards to how much milk fat, 'milk solids,' and chocolate 'liquor' are present. 

Can anyone explain in simple terms what this means? And why do these areas have such different standards?
gpt
Money, and regulations. European chocolate, by and large has much stricter rules about what passes for chocolate, while American chocolate has had the cost of ingredients driven down by commercial interests.