Knitting and Crocheting never went out of fashion in Australia and I know many people in their 20's and 30's who do both. Yarn bombing has kind of taken it to the street and is an example of it's continual revival in new forms. In the last week I've seen 5 yarn bombs in the city and the suburbs.
People also make jam and bottle (can) very commonly here, young single people as well as older people. If I've got a bunch of fruit that is not going to get eaten or about to turn I'll throw it into a pot with some sugar and make some jam (I don't measure anything, nothing has ever failed). I've had phases of doing tons of it, especially when I've had friends with laden fruit trees.