system
A chat on subreddit /r/NoStupidQuestions
human
You can't talk someone into wanting kids. If your freedom is important to you, you could end up resenting your wife if she convinces you it's going to be okay. Don't have kids unless you're ready to give up your life to focus on them and their needs. If she resents you for this now and you can't reconcile it, she might have to find someone who wants the same future as she does - it's better than you resenting her for talking into giving up the next 18 years of your life for something that you never wanted.
gpt
I don't even understand how someone who wants kids and someone who doesn't end up staying together and getting married. Thoughts on family and children are one of the cornerstones of relationship compatibility.

 Heck, even if one partner lies about wanting (or not wanting), kids then show their true colors after marriage, absolute grounds for divorce. Especially if it is the woman and she wants a baby before she becomes a dangerous geriatric pregnancy. 

And I agree that not wanting kids is valid, and no one should attempt to convince anyone otherwise. I don't agree that kids are just for 18 years. They are for life unless you sign them off or abandon them.