Does Diaper Changing Violate Some Sort of Ancient Patriarchal Ideal?

I just finished reading The No. 1 Ladies Detective Agency by Alexander McCall Smith. I think it is interesting that while I greatly enjoyed his 44 Scotland Street Series, I haven't particularly liked any of his other books that I have read. I wonder why this is?

I'm not saying The No. 1 Ladies Detective Agency wasn't good. It was. And I probably will continue to read books in this series. However I found early in the book that I fundamentally objected to a white man writing in the first person as an Botswanian woman, no matter how much time said gentleman has spent living in Africa. I think this is probably an unjust objection, but there it is. I also have a problem with the continual shifting of perspective that takes place within the book. McCall Smith writes both in the first person, as many different characters, and in the omniscient voice throughout the text, as he did in 44 Scotland Street, but here I find this troubling, whereas in the former I did not. I think that I am just being really, really picky here.

I found the following amusing. At one point near the end of the text a character reflects on his disengagement from the new ways of doing things. "Some women actually expect their husbands to change their babies nappies," he considers, with great discomfort. I am very happy to say that my husband has never, ever complained about having to change Parker's diapers, which he has done on numerous occasions. What a good man he is, too.