My son is 13 & has just passed is grade 4.
He loves his big band jazz but his current tutor is definitely non jazzy.
We went to a jazz band & then say he needs a jazz teacher.
His current (non-jazz) teacher says he would be better sticking with the more classical basis for another year & taking his grade 5 before becoming more jazz based.
I have no clue but I do want to maintain his enthusiasm & interest so I am more inclined to go the jazz option.