Xenia
My children are at the same comp ; they are both young in their year ; they are both lazy lippy lumps at home
DD is excelling absolutely and utterly - even my UTTER snob of a mother had to admit that her learning is comparable to mine (GDST), my sister's (mega famous gels boarding school) and my niece's (nayce boarding MOD paid)
DS is stubborn to the bone but getting there. He is starting to excel and the school provide an environment where he can do so
Your comments about the "thick" people merely demonstrate your own ignorance and narrow mindedness.
One of my clients digs holes. He loves to dig holes. He is good at digging holes. He is thick as they come and utterly uneducated. But I have the intelligence to engage him on topics where he can let what little articulacy he has flourish. At which stage he is good company for the time he is in my house.