Oh - I should say, if he hadn’t had a suit, a blazer and khakis would have been fine too. Or even khakis and a polo, though that would have felt a bit underdressed to me. some of the girls looked less formal than I would have chosen, but I tend to be fairly traditional on that stuff, so it may just be me. Plus I only have boys, so I don’t pay attention to girls’ fashions… ?