What are you talking about? Every generation in the US knows more about food than the ones before.

Boomers were raised on canned/frozen nonsense and basically had no variety. Their vegetables were underseasoned and overcooked. Their pickiness about cuts of meat left many delicious parts of the animals underappreciated scraps. They knew each fruit as basically one cultivar, like how all apples were the utterly mediocre red delicious. Even their bread was boring.

Their restaurant scene was pathetic, with Italian American food representing the pinnacle of exotic cuisine. Any immigrant opening a restaurant for American diners would have to carefully water down their traditions to fit American tastes and the American supply chain.

No thank you, I’d never travel back in time to eat or cook the way people did 50 years ago. Food is better now, and it’s largely because today’s cooks and diners know way more about food than people did back then.