I'd say just the opposite. People who think age means they have life experience are doing the most to damage the quality of discussion. Nowadays if you're born in the right class you can reach age 30 - hell, you can make it all the way to retirement - while never being exposed to any real consequences for your actions (and in fact everyone around you will go out of their way to prevent that happening). There are plenty of literal 14 year olds who have a lot more to contribute than a PMC "excellent sheep" who coasted right through school, university, and a not-quite-clearly-nepotism career in middle management or consulting.