I agree with this generalization, except for the part where you assert that women have grown up. In many ways I think even women are less mature today as well. Men have as little use for women today as women do for men, and for largely the same reasons. In truth, men and women really don't need each other any more, except for procreation perhaps, and even those days are numbered. The irony is that the people who are getting married in this context are precisely the people who shouldn't; the best candidates for marriage under the usual criteria are those that it serves the least.
I don't break it down by gender; I find most of humanity to be pathetic and irresponsible. Nonetheless, that is their choice, and I suspect this has always been the case throughout history. Nature punished irresponsibility more severely in the past, though.