I'd also throw in the rise of sport climbing where a single is standard. Doubles kind of went out of fashion about when I started climbing, but I also got the impression it was fairly common for both parties to bring a half rope, and share the cost that way. That was about the time some red-headed bloke started smacking steel in at Shipley, the Glen, etc.
I've only recently bought myself a half rope, and that's for Blueys multipitch where the ironstone flakes scare me, and I'll use it to back up the ridiculously light single (compared to the 11s I started on, and the 10.5s I've mostly used). |