I can honestly say that I've never had this problem. I don't know why, perhaps there has been enough grief in my family already or that my community is extremely diverse even by Ontarian standards. I have no fixed determination not to have children, but I have no desire to either. Any negativity would be in the form of just warning that if one had surgery or something and then changed her mind later how awful that would be- not that this hypothetical she would have to change her mind. Only that it would be sad if she found herself unable to have children if and when she wanted to.

The sentiment seems to be really strong here that couples or people in general, if you like, should do the responsible thing and only have children if they want them and can care for them properly. Every now and then my mom will despair of not having grandchildren about but when asked if she really wants me to be having kids that badly, she gets over her emotions.