It's interesting to note that High Energy Physicists all around the world will answer "yes", in fact they even created a C++ interpreter: https://root.cern.ch/drupal/content/cint.
I believe that CINT started life as a tool for medical device development. I count that tool as one of the main reasons that physicists-by-training find 'proper' C++ so difficult to comprehend.
I don't think that's how it goes. I think it's more that people who don't care about programming languages will stick with the first thing they learn until they are forced to change. If the first language they learn is C, C++ or FORTRAN then that's what they use.
This is what is being used now: https://root.cern.ch/drupal/content/cling.