Why is have kids seen as a blessing and being infertile as a trauma or curse?

Everyone congratulates you when you're going to be a mother or father for the first, have another child or have a large family. It's a blessing alright.

Yet if you're infertile, it's a trauma or you feel cursed. You might not be able to conceive your own offsprings but there is so much more in life than just having kids. So much you can focus on yourself. You can even accomplish more in life and have more time vs if you have a kid. Besides maybe you have other abilities and skills you can contribute to society.

Why is have kids seen as a blessing and being infertile as a trauma or curse?
Post Opinion