I suppose the ultimate question is, as noted by others: what caused this idea to be shelved in decades previous, eg. the 60s, 70s, and late 80s?
I suspect that the sudden murder (with the 21st-c. bonus of cam footage going viral) of a young Buffy S. Witherspoon or two from the MSW programs of private universities will mean the end of this concept in the 2020s, but I sure hope I’m wrong.