It would depend on stuff. As it happens, I was nearly 45 when Minibags was born so the physical side might not have been an issue. The emotional side probably would have been though, especially as I would probably have wanted to breast feed the baby... but maybe not if it was for a daughter.
So, dunno is the answer really. The circumstances described in the OP link are fairly unusual I should think. I don't think we ever know in advance just how we'd behave in really unusual circumstances.
The short answer is no, but having said that, it would depend on a few things.How old I was at the time ( being mid sixties now it hardly counts) but even were I 45 at the time, It could be dangerous at that age.So I don't know with any certainty.I can't imagine my daughters asking me to do that.
I would were I young enough, 45, when you are still menstruating and the same age as some other mothers. I could carry it and give it back because I would not be the child's mother, just its incubator.
I have supported my younger daughter for just over twenty years in her longing for a child, so many IVF treatments, long discussions on donor eggs and surrogacy , listen to her relate what had been said in support groups, spent hours talking and listening to her and my elder daughter discuss elder daughter being a surrogate , so complicated, so many emotions, so many raw emotions .
Yes. Already been through 2 pregnancies of my own. So one more for the joy of helping my DD to hold her baby in her arms would not be problem. Thankfully I have GC as at 57 I'm probably not eligible.
I know somebody who was a surrogate mother for her sister's baby. I found it quite difficult to get my head round, but seeing the joy which the baby brought the sister, I think I could be persuaded (except I'm too old and had difficult pregnancies, so probably couldn't anyway).
This is an amazing story of a mum helping out her daughter. I'd do anything for my daughter if she was in a similar position, though I'm a bit too old now to help with any pregnancies!