I agree that the GP's assertion is unsubstantiated, depends on a "common-sense" assertion that my well be false, and even if true is probably irrelevant. Even

I agree that the GP's assertion is unsubstantiated, depends on a "common-sense" assertion that my well be false, and even if true is probably irrelevant. Even IF people learn faster when younger (as the GP asserts), older people have more existing knowledge and experience. Given equal interest and dedication in learning some New Thing (such as internet law issues), and a superior starting point (such as knowledge and experience about other law issues, other social issues, and past changes in the structure of society), I would expect the older person to achieve mastery of the New Thing sooner, or more deeply, or both. (In some cases, of course, greater experience means more unlearning to do; I wildly speculate that the relevance of this is very very poorly understood, both over- and under-estimated.)