Its also agood age to move. I have friends who moved to Aleppo in Syria, they have 3 kids 7/10/13. The 13 year old found it hard to adjust... teenage years I expect. However 1 year later is settled, but I know they had a hard time.
My 2 are 5 & 8, but have the additonal benefit of an egyptian Dad and huge family that goes with it.... Your children will love it, they will have many friends, be the centre of attention for a while and will have more freedom to go out and about than in the UK. You won't be worrying while they go off to "Ahmeds" house and stay for tea, and come back on there own... Everyone looks out for everybody... sometimes annoying, but all meant with good intention.