SC Official wroteIt's not uncommon at all, especially in states like mine where you pretty much can't get a single varsity game until your fifth year.
Here, in my little corner of Connecticut, under our old rating/ranking system, it was impossible to work a high school varsity game until one's fifth year, with no chance of getting a full varsity schedule until one's eighth year. That changed with our new rating system, with no minimum experience requirements. If the observation team believes that one is good enough to move up, one moves up, whether it's one's second year, or twentieth year.
We've had several college officials (mostly D-III), with no high school varsity games under their belts.