Those are currently the top 10 most popular languages according the TIOBE Index. The idea that everything turns over immediately is maybe true in the valley, but it isn't close to being true industrywide.
This is true, but for a pure dev role (writing code, closing tickets, no technical leadership) I maintain that a C expert with 10 (recent) years' experience is functionally indistinguishable for a C expert with 35 years.
Is that because the previous 25 years experience from the one dev is now obsolete or because you essentially know all it is you need to know to be a great dev after 10 years? The first comment stated the former, but this one seems to be implying that latter.
C - first released 48 years ago.
Python - first released 30 years ago.
C++ - first released 35 years ago.
C# - first released 20 years ago.
VB - first released 29 years ago.
Javascript - first released 24 years ago.
PHP - first released 25 years ago.
SQL - first released 46 years ago.
R - first released 26 years ago.
Those are currently the top 10 most popular languages according the TIOBE Index. The idea that everything turns over immediately is maybe true in the valley, but it isn't close to being true industrywide.