I have read and heard in several places that having 3 kids is the "most" stressful, and those with four (or more) are more chilled. I struggle to understand why, unless it's because you "give up" a bit. I've 3 very young children (all singletons and under 3 1/2), and I'm undecided on having a 4th. I'm not looking for views on my personal situation, but just genuinely don't understand how another one would be less stress! It's another one that needs their hair washing, their favourite story read, their water bottle filled, their nappy changed, etc. How is that easier? Okay, these things don't last for ever, but the major reason I'm concerned about a fourth is how much it would cost as they got older. Relatively simple treats like pizza takeaways or cinema trips will be a fortune with paying for 3 , let alone 4, "big" kids, and of course basics such as school shoes and food will cost so much. And then there's holidays, university fees (hopefully), driving lessons.....How can 4 be less stress than 3????? I really would welcome views on this.