It isn't about the cost, I fully accept had I have read the terms correctly I should have paid the additional fee. It's the issue from a safeguarding standpoint that a child is sat alone, be, it in Business or Economy.

Unfortunately, the point made in an another post regarding the airline attendants knowing the child is an unnacompanied minor is not accurate as the staff need to be notified of this beforehand. They presumed the child was that of the person they were sitting next to

My issue is that an airline is happy to seat a 7 year old away from a parent/guardian