Why is the average age of the Supreme Court justices relevant ?
Supreme court justices are (hopefully) legal experts, not technical experts. Having younger supreme court justices doesn't change that _at all_. I don't know of many lawyers that know what an API is.
Sarah Jeong has written thoughtfully on whether justices need be tech savvy: http://sarahjeong.net/2014/04/23/scotus-is-bad-at-computers-...