Something tells me Canadians get more than ten acres if they dare venture further down.

The only thing that I could imagine that accounted for the 10 acre size is early indentured servant laws, later homesteading or possibly just an easy size to "deed out" when yer choppin up yer farmland to lots of people with varying amounts on money to spend. I'll leave the rest of the story fer someone who originates there.

That song has been in yer head for a while now, I think yer fate is sealed. Let me know when you get yer retirement and we'll have us an old fashioned house-building party!