I have 3 children who came to me through adoption. They are full bio sisters.
I was adopted myself when I was 3 following the death of my parents. I have zero blood relatives that I know of. Both my bio parents were only children as was I.
I will never have bio children of my own.
It bothers me occasionally that I don't have any blood relatives.
My wife is one of 8 kids, both parents and 3 out of 4 grandparents are alive, lots of cousins aunts and uncles.
I am the total opposite.