Many people, including myself, just know that we don't want to have children. Our outcomes won't have the same distribution as those of people who always wanted to have children, no matter how "smart" we are about it.
Another factor is that when you have children and regret it you can suffer a lot more than just "-1" of misery - I'd say the scale is more like -10 to +1 (centered around 0). Furthermore if you end up regretting it you will also inflict some part of that misery onto your children.
Another factor is that when you have children and regret it you can suffer a lot more than just "-1" of misery - I'd say the scale is more like -10 to +1 (centered around 0). Furthermore if you end up regretting it you will also inflict some part of that misery onto your children.