The life expectancy for a woman in the UK is 80, meaning that by the law of averages the mother should live at least long enough for the child to reach adulthood. Also, the fact that she's able to give birth at 62, even with IVF, suggests that she's healthier than average and will probably live longer.
I see absolutely nothing wrong with it. There are so many unwanted babies born to much younger parents growing up in broken homes and foster homes that, given the risks this woman took to her own health and that she's already successfully raised 3 previous children (meaning the baby has many older siblings if something does happen to the mother), then I say good for her. Its not like our birth rate is so high here in the West that we couldn't use more babies born to UK families.
