Excellent decision, IMHO.
However, is it not slightly rich of us as an industry to continually offer alcohol to our customers, knowing that we will not allow them to board the aircraft when drunk. Virtually all recorded acts of violence on-board are exacerbated by alcohol, often as a result of delays. Why do airports continue to serve people who are intoxicated, knowing that it is illegal to board an aircraft whilst in this state? The airlines are not without blame either, serving free alcohol once on the aircraft.
Why is it that the only place in the UK where you can buy alcohol at 0900 is at an airport???
Time we banned all alcohol from airside, I think. Think of the profits we will lose, but think also of the cost of diversions and incidents incurred as a result of our current policy.