Do not worry about what people think,some get dressed up others dont,When are you going as early May tends to get a little chilly in the evenings.If you want somewhere with a sea view then the Horizon or Costas on the beach if open or the place between the Horizon and Costas,i cannot remember the name at the moment,but this maybe the best for your daughter.you would all be made welcome at Brouklis whatever you wore.