I remember my days at a little tot, flying in first from Korea back through Hawaii to Cincinnati. Oh the fun I had pooping in my diapers, wailing when everything wasn't exactly to my liking, running up and down the aisles, and when the urge struck, kicking the seats (or anyhting else) around me.
So its 30 years later, and I no longer consider most of those activities as enjoyable as I once did. And would I bring my little angel (or demon) on board in first, assuming I had such an individual? In a heart beat. Travelling is miserable enough in coach as it is; I couldn't imagine doing so with the added burden of any progeny.