I am taking my 13-year-old niece to Paris in early July. She takes ballet and so we're going (assuming I can get tickets) to the Paris Opera Ballet and I'm wondering about where to eat near the theater. She's a sophisticated, relatively adventurous eater but she IS 13. I looked around here for spots near the Palais Garnier and here are the three that sounded interesting:
Le Cafe de la Paix
La Fontaine Gaillon
Drouant obviously is kid-friendly. But is it adult-friendly? And what about the others? They look lovely but would they be OK for a young person?
Any other ideas in the area?