www.guardian.co.uk/lifeandstyle/2011/dec/03/emma-kennedy-only-children-siblings
Some of this is a bit OTT (but then so are all the anti-only-child stereotypes) but I thought generally it was pretty good. I especially like this passage:
"The only negative I can ever come up with when I am quizzed about the downside of being an only child is that, when the time comes, I shall bear the burden of my parents' old age and inevitable decline on my own. While this will be difficult and stressful and heartbreaking, I can think of no greater privilege than being asked to look after the two people to whom I owe everything. My mother taught me to read, my father taught me to ride a bike. Those two things alone have gifted me a world of endless joy. So why wouldn't I want to be eternally grateful?"