That has put me a little at ease, as I had visions of children in Kent being tutored for 2 years or more.
For us folk here in West Kent that is more the reality! A few of the schools in Tonbridge/Tunbridge Wells end up taking such high pass marks, that most children I know have been tutored, whether from the state or independent sector. I have lost count at the number of people I passed our tutor's number to. - although the tutoring was generally for 6 months.
Our state primary's Headteacher gave weekly sessions of practice papers over the 6 weeks leading up to the exam - even though there were only 6 pupils! However, I know the Head is not keen on this but it appears to be the norm in this part of Kent.
Anyway, enjoy your move to Kent!