Hi Noddy
As I have always said on threads like this, the opinions that really give the best viewpoint are those of mums whose children currently attend boarding school.
I went to boarding school and my ds goes now. Our experiences are totally different. Don't get me wrong, my time at boarding school was valuable, but compared to ds' time, boring!
DS asked to go when he started Year 7. It was always an option for him, but we left it up to him to decide. He has activities every evening and at the weekends too (when he choses to stay there) He shares a room with his best mate and gets to socialise with children aged 9 - 18 from all over the world.
I do miss him, but not a huge amount this is probably because I know he is happy, entertained and settled. DS has his mobile phone, but we rarely get a call from him; we can go the entire week without hearing from him.
He is a completely disorganised soul, but is managing to get (the majority) of his homework done and a 6th form boy has buddied up with him to make sure he does his cornet practice. His progress has been excellent, and I was convinced that he wouldn't manage without me... so TBH being away from me has probably helped
Listen to the parents whose children currently board... (both good and bad stories) that will give you a more rounded and up-to-date idea of the system as it currently stands.