Training Costs
Being curious I did a little research in respect of the cost of Pilot Training and found that in 2008 the average cost of RAF Pilot Training from Entry to Squadron was £9.19 million. I guess that cost will now be around £10 million.
There is absolutely no way to justify accepting someone with a known background of a medical condition such as asthma for pilot training in the hope that they do not suffer an attack whilst airborne.
The three "legless" Pilots who flew with the RAF in WW2 had all qualified as military pilots before losing their legs.