My daughter (5) had her first recital three weeks ago. I didn't know that you bring flowers. I felt awful when I saw everyone with the bouquets - and told my daughter that I didn't know about bringing flowers. She rubbed my arm and told me it was ok, she understood that I can't know everything. (how sweet) About 5 minutes later, her best friends family showed up (the friend was also a dancer) and the dad had an enormous bouquet. At that point, she got really sad because she didn't have flowers. I would have certainly gone out to buy flowers if they had a stand set up outside.
My SIL showed up shortly thereafter with a bunch of roses for her.
Thank goodness for aunts who have clue.