Growing up just outside of NYC, there were school field trips four times a year for Broadway shows, and my family would go as a group to the same number. The school stuff would tend to be mid to late runs on Wednesday matinee twofers.
So, you'd see the last cast at the end of the run of Man of La Mancha after having lunch at Casa Del Sol (was that what it was called?) This repeated itself with school trips to Fiddler, The Me Nobody Knows, etc. with appropriate ethnic lunches to complete the learning experience. It was a sweet but naïve way to teach.
In any case, the funniest thing I remember was seeing Company on a school trip in the 8th grade. The parents who were chaperones freaked out at the sex and grass scenes. There was a whole to do back at school about who chose the shows for impressionable young things to see.
My first family theater experience was Follies. Smart parents