You’re overlooking an important detail - kids love that cheap, shitty food. It was also quick and easy to make, so their tired, overworked parents were easily persuaded to make it.
Naturally there’s a line where it becomes too much, but even rich kids love hot dogs and Mac & cheese.






Again, kid logic. Plus, many young parents don’t know (or care) how to properly cook veggies anyway. It’s a choice between canned (and usually salted) veggies, or similarly mushy, over-microwaved fresh/frozen veggies with little seasoning or flavor. It’s not like the green beans are roasted with olive oil, garlic, and balsamic vinegar.