"A common query [really a complaint] today, especially from women, is, 'Where have all the men gone?' "Click through for the whole thing.
Men such as Hugh Hefner, comedian Andy Farley, Charlie Sheen, Mick, Keith and the other Stones, who, despite being in their 60s, are still "prancing around as if they are 20 years old", are typical boy-men.
So what's happened? Why this strange, new tribe?
"We haven't really solved what a guy is supposed to do in a world where the most natural and easiest position to have is that of a playmate to his children, and a banker, so there's been a tendency for men to kind of withdraw from fatherhood responsibilities and into a world of private play," says Cross.
He also blames men like himself, who rebelled against their fathers in the 1960s and embraced social changes, such as feminism.
"This is the rub - how do you come up with an idea of male maturity or manhood that isn't a return to older ideas about male power? I think that's been a very difficult thing for my generation. We all thought we'd be new men and abandon the old patriarchal ways of our fathers.
"Our idea was that you're more of a man if you live in a world where women are equal with you, and you're nurturing as well as powerful. And that's still a value - we just haven't been able to pull it off. The culture has done very little to encourage it."
I've been thinking about this recently, in terms of the Western cultural expectation there seems to be that men avoid commitment for as long as possible, and women are trying to tie men down or trap them into marriage, babies, whatever. Which is so not my experience. Yet what we see on telly, and read about in many books, is the old trope of men as boys and women as schemers/long-sufferers seeking personal growth in the opposite sex.