100% - especially for the varsity players - the expectation is that without a valid excuse (Drs appt, etc) - if you're at school, you're at practice
JV attendance is a little spottier.......but that may be part of the reason they are JV
DD’s school has same coaching staff for JH and HS. And through other parents (with players in HS), I understand the expectation is 100%. For JV and Varsity.
It’s how they run the JH program as well. Last year there was a girl who prioritized her club volleyball over school softball practice. She’s a good player. But because other girls were attending all practices this girl hit last and never started unless someone else was hurt or absent.