Yeah that’s me too having been a classical musician for so many years. Fortunately that’s changing. My son, also a violinist and graduated from Juilliard with M.M. a couple of months ago, had an “improvisation for classical musicians” class his last year.
A fun aside: the prof was a jazz saxophonist—he’s in the SNL band, usually you can see him at the left of the host in the front, balding guy.