I don't like in Canada but a lot of these questions depend on where you want to move, just like any American city. Metric system is easy to learn, the currency holds about the same value as ours (theirs is slightly higher but not much), the people are about the same it just depends where you go really just like anywhere in the world. The weather of course is a bit chillier then the US (Think like Maine). You can survive in Canada without knowing french and I can only assume it's like living near the US-Mexican boarder where their is a strong spanish population, it only helps but isn't necessary to know the language.