Is Cr�pe Suzette an alcoholic food?

I wouldn't concern myself about the age of the diner. Restaurants serve it to all ages. No carding involved to order. Usually if using the alcohol on a food to ignite it, when the flame goes out, there is no alcohol left that's why the flame goes out. If you put the flame out with say lemon or orange juice there may be traces left but still so little I would not be concerned.