Why is Layla so infamous for being dumb? What has she said or done that proves that she's dumb? Because I don't remember. Besides being bad at speaking Spanish, which is fair because learning a foreign language is hard and English and Spanish are super different (I speak both languages so I should know).
I mean, a little bit spoiled, sheltered and naive? Sure, but that will most likely change when she moves out to college and spends awhile on her own dealing with things by herself.