It's a different world now.

I'm a mom and an auntie. If, for some reason, I was not capable of fulfilling my mother role, I'd absolutely be okay with being an auntie. Better to be an auntie than be completely ousted from your child's life.

There are cases where girls have had children where Grandma became Mom to that child and mom became Big sister. So, it's not unheard of. In some cases of surrogacy, mom became auntie and aunt became mom.

We've got options today that have changed things a lot. You have to put yourself in the mind of a prehistoric person to see the value of the arrangements of the past.

If I gave birth, I might die and someone else will have to taje care of my child. There's no formula. The infant will have to go to another nursing mother. If she has a mate, which she likely does because she's got a nursing infant already, then it would cause problems if dad doesn't agree to become uncle. Again, better the child live and to be uncle than out of that child's life.

Even if the birth goes okay, and regardless of my sex or relationship to the child, I could die at any time or some other parent could. I need to be able to depend on others to finish raising my child (mom or dad) and they need to know that I will take care of theirs if something happens to them.

You might have too many close together.

You might be injured or become sick in a manner that will incapacitate you and taje a really long time to recover.

You might be separated for a long time.

I suspect in prehistoric time, the whole tribe engaged in alloparenting at one point or another. They would have had to have.

All of that is intriguing and relevant, but no one is suggesting we model today's society after what was in prehistoric times. Nobody is suggesting that fatherhood be ended.

I'm not sure where you're reading into that.