It's kinda natural for women to be obsessed with having children. Those who aren't rarely propagate their genes...

Getting several books down the line, you'll meet some of the women of the next generation who are even more pissed off with Barrayar society as they've had a chance to see the worlds beyond. The culture clash becomes ever more interesting (and you also see the way some women manage to make their own impact by working round the restrictions. I remember one character in particular who gave me a very pleasant surprise)