Well, it's been entertaining reading all your posts!
My daughter warned me when I started this thread that it might turn confrontational, and she was right. For what it's worth, as a statistician and a skeptical scientist I agree with those who aren't too concerned about an infant's safety on a plane when not belted in (at least relative to busses and cars). However, as a grandfather and father, my decision was to purchase the fare for my grandson, and it will be worth every penny in peace-of-mind for me and his parents!
Now, don't let me interrupt your arguments