That is amusing, as if getting old was indicative of level of intelligence. While there is truth to what you say, perhaps what's important to old people is different than younger people? I mean surely as our bodies age and our activities change our needs change and that has something to do with older people carrying similar things? Or it is just because they are smarter than everyone younger? Yea, I doubt that.
I'm glad you find it amusing, you so obviously missed the point.
Yes older is smarter. What does a young man know who just graduated high school, is going to college, and is barely voting age, compared to a man who has served in a the military, maybe even in a war, got out, got married, had a career, built a house, and raised a family? Theres a little bit of experience in real world living between a 60 something year old and a 21 year old who hasn't even begun real life yet.
Do you really thing theres nothing to be much difference between them in street smarts and knowing what it take to get the job done?
Getting old is a great teacher just from living long enough to gain a lot of experience dealing with millions of everyday things year after year, and learning from the mistakes we make.