I strongly agree, but then again "generation" has always been a highly imprecise unit, enough so that I wouldn't outright call "30 years" wrong. We have lots o

I strongly agree, but then again "generation" has always been a highly imprecise unit, enough so that I wouldn't outright call "30 years" wrong. We have lots of examples like that, for instance lots of people complain when "a couple" refers to any number other than two, and yet common usage is for it to be pretty synonymous with the more obviously vague term "a few". Another reason to be strict with output and flexible with input.