The target demographic of a computer language is people who program computers. Python is as old as Perl. Ruby, at a spry 20, is only five years younger than Perl. Java is pushing 20 and JavaScript is not far behind.

Are you suggesting that when Mats created Ruby, he was thinking to himself, "I can't wait for the all the first graders to grow up and use my language?"

I rather think that the creators of computer languages think in terms of present, rather than future computer programmers, and not in terms of "My language will make all the Beliebers want to become software engineers."