Yes I would tend to agree with kol on this, my boys think that boarding is great, they have quite a few friends in boarding and I see that the boarders are involved in so many evening activities. Moreover they are away from home only 5 nights, Mondays to Thursdays, they are back home on Friday evening and go back on Sunday night I believe.
And if you don't want to send your son to a comprehensive school or not so good grammar school, then the other alternative is private school which is usually around £18K plus every year. So that way Reading School boarding option is much cheaper.
My son is boarder there an enjoys a lot .
the boarding fees incluedes all meals, laundry, multiple trips during the year
after school they have a lot of activities to participate in
The school itself is great so if your son has a channce to be a boarder
You should go for it
A lot of his day friends think boarding is great