I don’t recall eating store-bought eggs growing up. Surely there must have been times when we did, but I never really remember anyone buying them. What I mostly remember is my father coming home late from work every few weeks with a couple dozen eggs procured from a farm just outside the Halifax city limits. There wasn’t a lot of debate about why we went directly to a farm for eggs, and if there had been, I’m not sure it would have been of the “support local farmers” ilk. I suspect it was more that the eggs were cheaper than supermarket eggs, although, in retrospect, the gasoline used to go and get the things probably negated any savings.
And as a kid, I would have been hard-pressed to be able to tell the difference between farm and factory eggs, although the farm eggs (that never went to a grading station) occasionally turned out messy half-fertilized chicks that grossed out my brother and I.
As a grown-up, I buy supermarket eggs because they’re more convenient and because all three of the stores within walking distance of me carry some version of organic, free-run eggs. These are obviously not ideal in that the chickens are not free-range (aka. let outside to eat bugs and run in the sunshine) but are definitely superior in both flavour and ethics to the battery-caged industrial eggs that are more readily available.