Is this question ("how many kids do you have etc") more like a dispassionate "help me understand your point of view because at first glance it doesn't make sense to me" or is it more like "I am gatekeeping and you can only express an opinion if you have children old enough to have graduated college (or if you agree with me)"? I cannot tell without nonverbal signals such as tone of voice. The latter would (without the parenthetical exemption) mean that very few current commenters could join a discussion and it would eliminate entirely the youngest and traddiest of generations, which I think is contrary to the "laity can has opinions, cats can has cheeseburger" spirit of Vatican 2.