This thread is following a similar pattern to every other thread that's been done on the subject. The people who became older parents mostly say it's wonderful and there are no issues at all, and the people who were the children of older parents mostly say they found aspects of it very hard and that people should seriously consider the risks.
Yes and it's exactly the same with parents of very large broods of five or six plus insisting that it's all fun and games 'round their house, like the Brady Bunch when in reality it's often more like something out of Angela's Ashes - no money for shoes or food, no one-to-one attention, often no father/s in sight and a mother who's so frazzled she can't see straight.
People want what people want and they'll find a way have it. They do this by telling themselves and anyone else who'll listen some fairytale about how manageable it all is and how happy and loved and showered with attention their children are, in spite of what might seem like challenging or unusual circumstances. Because they are Superwoman dontcha know? The experiences of mere mortals like the rest of us don't apply to them. If we've found it hard enough with three that's because we are not cut from the same cloth and the failing is clearly on us.
No-one suffers in their house because there is plenty of love to go around, even if there aren't quite enough bedrooms or seats in the car or enough time to take anyone to football practice, or read them a bedtime story or remember their World Book Day costume.
So what if there is no space/time/energy for playdates? 'Who needs playdates with friends when every day is a playdate with six/eight/ten siblings in the house?'
Ask those children in 30 years time how much fun it was and if they might tell you something rather different.