I had forgotten...

[Olive]

Yes, our generation grew up eating crayfish, whitebait & Bluff oysters - we didn't know how lucky we were.

My parents didn't have much money, but we sometimes had crayfish, oysters and whitebait as a treat, and my grandmother sometimes bought a jar of whitebait out of her pension.  They were definitely special occasion foods, but were within reach.   These days, with far more disposable income, I never think to buy crayfish, Bluff oysters are a once-a-year indulgence and I don't buy whitebait because it is endangered.