Sounds like you're projecting the habits of your personal circle onto the masses: most people are nowhere remotely near the point of removing every inconvenience from their lives. I don't know a lot of miserable rich people either.
Yeah, seems very weird to judge someone so harshly for simply not wanting to cook and then go on to accuse them of being miserable. I mean, does someone who's spouse does the shopping and cooking get the same judgement? Absolutely not! Neither do people who hire a landscaper instead of doing their own yardwork. Nor do people who drive a mile to the store instead of walking or biking there. Nor do couples who have multiple cars when one of them doesn't work (or they both work in the same direction)
Anyways, these people I'm talking about upthread still go to work everyday, do their own laundry, clean their houses, scrub their toilets, do their yardwork, do their taxes, work out regularly, run errands, and probably hundreds of other things that cause minor inconvenience. It's not like they are doing nothing but sitting on the couch poking at their phones.
It's not my kinda thing, personally. Mostly because food in general just isn't at all important to me.
To me it's just ascribing all these benefits to your little hobby horse that other people surely lack since they don't share your interests, even going so far as to hint that it's evidence of some sort of decline in society. I've seen HNers say the same thing about people who don't care how computers work to people who can't take a walk without headphones on.
The atrophy of personal cooking in the United States is a broad and pretty well documented phenomenon: "The percentage of daily energy consumed from home food sources and time spent in food preparation decreased significantly for all socioeconomic groups between 1965–1966 and 2007–2008" [1]
