Ken4155 - //His wife is only 29, should she be denied the right to have children because he is 72? //
I would never want to deny any woman or man or couple the chance to have children.
That said, the issue of age is something that has to be considered.
I am sixty-one, my wife is sixty.
If she were to die, and I entered a relationship with a woman of child-bearing age, then the prospect of children would have to be considered well in advance of any discussion about a long-term future for us as a couple - and that is something that any younger woman must consider when she embarks on a relationship with an older man.