I must admit Tambo that the particular boarding school my son went to gave him so many opportunities he could never have had if he had not gone. Gave him a far more rounded education and, above all, made him think for himself and encouraged him to be his own person. It was the best thing we ever did for him. However, I do feel sorry for children who are sent away against their wishes - although, as you say, in some cases parents have no choice.
I still think however 8 is much too young to leave home. What really upsets me is that at 8 years old children still need physical cuddles. However much attention and love they get from the boarding school staff, they cannot give them any physical affection. That to me is deprivation and can lead to all sorts of problems right through their lives.