I’m so glad to hear its going well! Vocalists are young…and some really do want the classical training even if it’s not the end game for them. Our first visit was an MT program; and even though I was impressed, my D was surly and sassy after. She finally said that she didn’t want to go there since they did no classical training. It was the first time she said that classical was important. I think that she assumed all schools did it. So yes, dig into the music programs, drama programs and MT programs as well as the extracurricular activities available. Some of these extracurriculars can be quite good if the on-campus MT program is mainly for MT students (not uncommon - but not all kids are cast in every show - so they go outside of the school and do excellent work). Sometimes MT and Music students will mix in these extracurricular activities. These can be harder to find out about…but they exist at many schools.
And, as a vocalist, my D never spent 8 hrs in a practice room. Maybe your H is an instrumentalist? Vocalist are lucky/unlucky in the fact that their instrument is in their body and it can wear sound-wise easily…so there are no 8 hr practice session for vocalists (maybe 2 hrs). However vocalists do spend a lot of time in their room, coffee shops etc listening to their music, translating their music, memorizing their music (no scores in hands during an opera) etc.
I hope that this helps. Enjoy the rest of your trip!