I think this is a too much pessimistic point of view. People with difficulties will be people with difficulties, but the fact is that the boomers actually are a little incompetent at it, simply hecause they had to deal with many more pressing things. They wouldn’t be stupid to learn as much as your average person wouldn’t be, they’re just understandably lazy. I too am lazy, so I’ll never cook as well as my grandma.
there could be a way maybe, by freezing water while keeping it extremely pressurized (extremely), you can make “efficient ice” that occupies less space, called ice VII, I’m not kidding. It would cost literally billions of dollars so not yet feasible, but it keeps my sci-fi loving mind at ease.