I'm reminded of conversations with some of my coworkers about how there were times when they were young when schools would give the 'dessert', sometimes just toast with jam first, hoping to fill the kids up, because of difficulties sourcing of more nutritional foods - and some kids just not eating it.
Also reminded of discussions family members had when I was growing up, including those among the first to use ready meals - how it was considered a sign of making it, that no one had to go out and wring the chicken's neck, we can just pop it in the oven, pull it out or even better, having someone else cook it for you.
Now ready meals are treated as borderline abuse, and the only time I've seen discussions on encouraging jam on toast is in supporting those who've become underweight through loss of appetite.
I understand the importance of caring for ourselves and our kids, including though nutrition, and on the other hand that what is considered doing that has a cultural tint to it that changes with time as views towards and understanding of food changes. I do think for some there is confusion with the changes and with marketing around us around what to eat. I think for many others, there is knowledge, but a struggle in trying to get better foods to be palatable.
I was in my 30s before I enjoyed a salad. I'm still working on beans outside of a chili - I try something every week, and still struggling with it. Maybe I'm lazy - I mean, currently, my three teenagers each cook at least one night a week, and I let them cook what they want even if it's chicken nuggets and cheese chips - I think I'm just a finite person living with others with very different palates just having a go at it, when really, I prefer thinking about food as little as I can get away with.
There have also been studies in "food desserts" in America that parents living in poverty just junk food as a substitute gesture of love because they cannot afford anything else.
Food deserts aren't about not being able to afford anything else, they're about the separate issue of there not being access to shops that sell decent food within a particular radius of a residential area. People can't buy what the shops aren't selling.
Most of the writing on it was decades back before food deliveries became so common. It is worse in the US due to zoning laws and many areas far out not having deliveries. It also happens in the UK - I've absolutely lived in places where you can walk 30-40 minutes, visit each shop, and not see a single vegetable. Last month, I nipped out of a train station for some bread, and it took til the 4th shop to find any - the others, it was all pretty much UPFs. The train station was a near secondary and a college, and they were clearly going after the 'I just got free with some money' child demographic.