TitaniumT, I've seen a lot of correlation. Of course, I can't offer proof, but I've seen plenty of differences. It's like generalizing about only children or the middle child. It's not always true, but it often is.
At my age, I can't imagine making a 20 year commitment. That's just wrong. I've got a five year payment plan for my wife's last set of hospital visits, and that makes me feel very uncomfortable because I have no idea what kind of shape I'm going to be in after that long. My hope is that Willard Scott will still be on the Today Show in 25 years, three months, and one week when I hit a 100, and I get my picture on the air, but things can go bad quickly so you can't depend on next month, much less years down the road. It's a child we're talking about, not a mortgage.z