I think the reason the second fact gets less attention has to do with the focus rapidly shifting to markets and prices as the mechanism by which the exchange rate is set, rather than 1-on-1 negotiation.
Not to say that the second fact is irrelevant. OPs examples of relevance of fact 1 include things like household chore splits between partners, as well as career choice—applications where fact 2 is clearly very relevant.
But in econ 101, there is a lot of ground to cover. comparative advantage is a natural jumping off point for supply & demand Qs which are pretty much required content, whereas negotiation, game theory, bilateral decisions are usually treated as somewhat supplementary.
I think the reason the second fact gets less attention has to do with the focus rapidly shifting to markets and prices as the mechanism by which the exchange rate is set, rather than 1-on-1 negotiation.
Not to say that the second fact is irrelevant. OPs examples of relevance of fact 1 include things like household chore splits between partners, as well as career choice—applications where fact 2 is clearly very relevant.
But in econ 101, there is a lot of ground to cover. comparative advantage is a natural jumping off point for supply & demand Qs which are pretty much required content, whereas negotiation, game theory, bilateral decisions are usually treated as somewhat supplementary.