W knits for England, she is currently doing a sweater in oiled Shetland wool for her son which will become an heirloom. She was all set to go and learn crochet with a group when Covid struck.
Funnily my granny taught me and my bro how to crochet when we were little but we did nothing like she did.
Sailors do it when they reduce the length of a rope without cutting it by making a thing called a "Monkey's chain". Also known as a chain sinnet apparently.
I once did one in a girlfriend's parents' house in their downstairs loo where the length of the pull cord was ridiculously long and they had simply left messy loops.
Went back there just once 4 years later, it was still like it