As stated the first one of the day before your first Novice session is pretty much mandatory.
Generally they're trying to provide tips for first time riders, and first time riders to the track.
Also, if there's time, there may be some sort of technique tips offered in the morning session.
The other classroom session that might be considered mandatory is if they call a Novice session/meeting
during the lunch break. They may want to make changes based on how the day is going regarding passing
rules, and/or address technique issues they're observing on track both good and bad.
More so in Novice, there are more riders in varying levels of comfort with being on the racetrack.
The meetings are not only a way to get the riders in that group together to teach, but to also
gather in the same spot and allow the CR's/Directors to communicate with Novice group riders.
Communication is key to the success of the day, the group and individuals.
Try not to look at it as a burden or inconvenience, but an opportunity.
I cannot say I've done it in a while, but I've been known to pop my head in to the Novice meetings as an A rider
from time to time. Fundamentals get re-enforced for me and sometimes bad habits I've adapted get undone
when I get instruction.
Just my 2 cents.