1 in 10 couples cannot reproduce. I know several. Sometimes the pain of being childless and not able to do anything about it is heart-rending and it’s very sad to witness.
And people who think "just adopt kids" it is not that easy.
They reference children in foster care and do not realize that 99% of them are not up for adoption. We went the foster route and it has taken us a long while to get our kids.
During that time your heart will be broken again and again as children you have cared for are sent back into horrible situations and there is nothing you can do about it. Or the social worker decided they have "become too attached" and so they need to be sent some where else.
Let's not even go into the "gender affirming" craziness that you need to sign on to before they will let you foster from the state.