In her teens, my elder daughter was a very good ballet dancer and helped to teach at a local ballet class. She stopped dancing when she went to university, but retained her love of it. When she gets the chance she goes to see performances. Recently she saw a modern version of 'Carmen' but was not impressed by the sight of male dancers carrying machine guns. She definitely prefers classic ballet.
I admitted never having seen live ballet, but she said it really helped to understand the story so if I wanted to see one, pick a well known one. I might one day.