I don't think you're weird at all. I have two friends who decided, with their husbands, that they did not want children. Both were devoted teachers who dedicated their working lives to education, just didn't want their own children. I've got seven grandchildren, and another on the way, but if my son or daughter had decided not to have children, or hadn't been able to have them, it wouldn't have bothered me at all, much as I love the ones I have. I do know people who talk of little else but their grandchildren.I know others who, like me, talk about them where and when appropriate ( and this is sometimes to talk about a concern, such as one has currently encountered very unpleasant bullying in her first weeks at secondary school. Sometimes to talk about something that has gone well) but I also talk about books I've read, exhibitions I've been to, restaurants, things in the news, etc. However, being a grandparent is not within our choice and it may or may not be that your children decide they do want children. However things work out, as long as people are happy with the decisions they have made and are not judged or do not judge others whose decisions are different, then no problem.