You're saying nothing is new under the sun. Okay sure, but there are measurable demographic and numerical changes in the technology workforce and certainly growing up with technology had led countless currently young tech workers to where they are. That's not to say tech never existed or there were never young hotshot. Millenials, like boomers, are a large workforce and its possible we are describing a bimodal distribution.

There may be plenty of older workers but IMO, the sheer quantity of younger folks, who are told truthfully that tech is a great wage in a bad wage economy, those billion younger people globally and the youth of many successful founders and high performers, those are the main contributors to our perception as young.