In my now 5 year old's, 3 and 4 year old recitals, the kids all did very well. I see this disruption as mostly the teacher's fault. No they can't predict what will happen on stage. But at DD's dance class, the teachers don't put up with play around in class and they definitely don't put up with it on stage. Their philosphy is that I paid just as much for my daughter to take her lessons seriously and learn something as the class 'cut-up' or 'clown's' parents did for them to play. And if the kid isn't interested in learning dance, then they can leave. They usually lost a few criers or cut-ups ( i mean as in disruptive, not just silly) in the first few weeks. Then starting about 2 months before rehearsal, they end each class talking about the girls you don't want to be at recital. Debbie Downer who just looks down all the time, Peggy Parkinglot who didn't wait for her parents backstage but ran outside and got lost in the parking lot, Cathy Crier who cried all her make up off, etc. Oh, and Penelope Picker who picks her nose on stage. LOL. All in all, they do all they can to prepare the kids for the stage night and then if some kid acts up or gets scared, then have the older classes on standby to run out onstage and help redirect them or get them over stage fright. Works well, all in all. DD's 3 year old recital, her class did great, though there was a kid in the 4 year old class that got stage fright and had to be led onstage by an older dancer. $ year old recital there wasn't any problems.