Plenty of people don't know how to cook and do fine. But cooking has big advantages -- it's cheaper, and you can make it just how you like it. Maybe everywhere's closed.
There might be some slight advantages to cursive (e.g. it feels better to write), but horse-drawn buggies have some slight advantages over cars also. I think calling cursive obsolete seems completely fair.
Cooking is incredibly useful and there's huge difference between packet readymade food and made at home. Especially when you start cooking for a few people
Why learn how to cook when you can get a packet of readymade food in the store. Cooking is obsolete.