They spend their most productive years paying off student loans (while inflationary policies make them poorer). But OOPS all the terrible information about nutrition and a lack of physical activity incurs future medical costs that bite them in the kaboose.
It's kinda depressing if you think about it too long. Obesity being a new normal is an ever-ongoing disaster that technically is entirely preventable.
But man, it's hard to escape dietary culture imposed from youth.