What's amazing to me is how much larger even single fruits and vegetables are now. The size of potatoes, bananas, apples, cucmbers etc is so much larger than before.
Also, I went to a fish market today, and my MIL bought a piece of fish for my FIL that was 1.67 pounds, I couldn't believe it! To my eye, it was enough for 4 people.
So even portion size for home cooking has gotten totally out of whack.