That's assuming people go to the Dollar store specifically to buy food instead of going to the grocery store, which is certainly not the norm. People go to the Dollar store to buy food containers, snacks for a road trip, batteries, toothbrushes, etc. That's like assuming people buy groceries at the hardware store; the intended purpose isn't the same.
At all of the American grocery stores I've been to, the unfrozen meat section is as large as the entire refrigerated section, which are all very typical grocery stores.
At all of the American grocery stores I've been to, the unfrozen meat section is as large as the entire refrigerated section, which are all very typical grocery stores.