Where we live in rural Switzerland and nearby France, offal is still very popular, but not for the young. I have mixed feelings about this, as ever since I was a child, I refused to eat offal, tripe, heart, brains, kidneys, liver,, etc, etc - and this is more and more the case with youngsters.
However, it is crazy from the environmental and animal welfare point of view- that increasingly only a small part of animals slaughtered for food are only used for the best bits, and the rest just ending up in sausages and cat or dog food!!! When you think of the amount of cereal and fodder + water required to produce meat- it is just nonsensical.
There should be a real campaign by the likes of Jamie Oliver and other famous chefs, to bring back 'lower cuts' of meat back on our tables, explaining the environmental factors at the same time.