Well, I was packing my own lunch, not well, in elementary school, was a latch key kid, had no homework help etc. no input with college. Yes, I would say a combination of neglect and laziness and cluelessness. I turned out fine - my brother, not so much.
My H was raised my parents who were very involved. He turned out great as did all his siblings.
I always got my kids their snacks and loved it every time. I still do things for them even though they’re teens. They are wonderful human beings.
People need to realize there are many ways to parent well.