Mallon my 21 yo GD asked me to knit her a 'bottom drawer' of baby clothes. She has no intention to start a family for some time, though she's got an 'intended'. She just loves the idea of hand-knits for when the time comes. I hope I'm still around to meet my prospective Great grandchildren.
I've seen so many new things come into being, in my lifetime. Plastics, jet engines, computers, electric cars...too many things to mention. I probably won't notice the demise of a lot of the things which may disappear. Most of them won't vanish before I do, anyway!