If it’s a grave of someone in living memory, then sure, it’s grave robbing, but even if someone knows it’s their 224x great grandparent then if there’s no memory either directly or even via oral history then it’s definitely archaeology
There’s a very blury line somewhere between the two, but it’s up to whoever shouts loudest or digs quietest to define that
High school depends, if you’re bullied or don’t work well in that setting or feel under too much social pressure to do what’s cool then it’s borderline torture, otherwise sure it’s great