The good Professors at the University of Virginia have made the discovery that mental powers peak at the ripe old age of 22. After that it's all downhill and it's a lifetime of trying to remember where you put your car keys and finding them in the freezer alongside your slippers.
I don't know many sub 22 year olds who are planning on ending World hunger or finding a cure for the common cold, most seem more obsessed with making sure their hair looks good and updating their facebook page and that's how it should be. I know there were people like Beethoven who had piano masterpieces under his belt by the time he was 5 or something but look at his hair, child prodigy maybe but a birds-nest of a barnet. William Pitt the Younger was making plans to run the country at 22 but died before his 50th birthday an alcoholic, unmarried and heavily in debt.
Saving the World from disease, writing classic novels or discovering the right order for MC2 and E should not fall to 22 year olds, it should fall to the older generation who have sowed their seeds and have spent a decade working as a janitor in a Patents Office.
Go off and enjoy yourselves 22 year olds and leave it to us oldies to make the discoveries and write the literary masterpieces but before you go, has anyone seen my house keys? I'm sure i had them a moment ago.