I'll say this as a father: Too many people feel like you do and have kids anyway. This is a huge mistake.
If you can never picture yourself with children of your own, or more importantly, don't want to, then don't have them.
You're not "incomplete". Having children changes you, but it is not a measure of completeness. This statement comes from any major learning period, which I think is what having a child essentially is. However, it's meaningless to say that "learning to play piano completed me", outside of your own context. Not everyone wants to play piano, and some of us don't even like music.
If you can never picture yourself with children of your own, or more importantly, don't want to, then don't have them.
You're not "incomplete". Having children changes you, but it is not a measure of completeness. This statement comes from any major learning period, which I think is what having a child essentially is. However, it's meaningless to say that "learning to play piano completed me", outside of your own context. Not everyone wants to play piano, and some of us don't even like music.