123 coco, I think you are very magnanimous and I'm sorry that you weren't able to have the children you wanted.
Going back to the OP, I think it's morally wrong for women of a certain age to have intervention so they can have a child/ren. The odds dictate as we age we are far more likely to a) have things go wrong physically, or b) die. I believe at least one such geriatric mother, much older than the one in question, has in fact died, leaving very young twins to be brought up, without a contingency plan in place, Yes there is a counter argument that unfortunately a small minority of young parents die whilst their children are still very young, but that's a lot less likely.
I think women go through the menopause for a reason, that reason being "it's not our time anymore for childbearing". I'm not including women who have children late in life because they are on the cusp of the menopause and their periods are all over the place. I can just about understand an older woman seeking intervention to become a mother because they are childless, but this woman has 3 grown up offspring and quite a few grandchildren. It's the tremendous cost to the NHS for her self indulgent act, for heaven's sake we all know that their resources are finite, so yes she is being incredibly selfish . The logistics of having quads, I imagine would be enormously difficult for a young mother, so she's got an uphill struggle ahead, let's just hope she doesn't live to regret it, because it will be these children who'll suffer.