A Chinese saying:
"Anything with wings but an airplane. Anything with legs but a table..."
I tried some in Hong Kong once. A lotta gnawing for very little nourishment. Less off putting, for me, than the calf brains I tried in San Francisco maybe 40 years ago.
It's all a matter of what you're accustomed to and what you are not.
I came across a news article, years ago, about the custom of baking small quantities of dirt in an oven and eating it to settle one's stomach. Per the article, there are folks that do this in the American south, and the custom is thought to have originated in Africa and moved to the US with the slave trade.
Never tried that, but I recall, reading the article, that I knew what dirt tasted like. I think this memory comes from playing pick up football as a kid.
Or, more recently, I read a story of an aboriginal/Indian/Native American girl living in the jungle somewhere in South America, maybe Brazil, with her small tribe. She had a smartphone, and was a worldwide sensation because she demonstrated eating grubs, live, I think, with gusto on Instagram.
So, if it's out there, someone's having a go at it.