"But it's too expensive!"
*Neglects cost of dining out often, buying soda/coffee, price of prescriptions for health problems that can be eliminated/controlled through diet & lifestyle*
Something I was thinking about speaking with one of my old professors, perhaps there's a bit of a biological basis as to why my generation is mostly bad with these kinds of choices. The frontol lobe doesn't finish developing until mid 20s ish, and it may play a pretty big role in rational decision making. I imagine neurotoxins in foods don't exactly help either.
Yes, I read the National Geographic article on the teenage brain. Amongst other things, they are less likely to be concerned with consequences and they are much more concerned with approval of their peers (not that we didn't all know that). There are some reasons why these traits were an advantage once.
Problem is, people don't get much better later. Possibly at least partly due to the bad diets that not only don't fulfill nutritional needs, cause harm.