Scientists have found that using a mathematical "Regression Analysis" one would find that the list, when inverted is also an indicator of the individual's maturity level.
The top would be the extremely sophisticate and "grown-up" individuals. These are shown to be well dressed, finely coifed, too cool and serious.
On the bottom of the list would be the bent over, hobbling, badly-dressed, "fart jokes are the best" crowd.
Again, this is a highly studied and well documented Regression Analysis.
