So, after having deemed this 1% to be an acceptable risk level it has been found that, in practice, we have been operating at a lower risk level, which has, on the whole been safe. You now want to increase the risk level in order to make money post 65th birthday. The arbitrary figure of 1% is not as safe as the current, lower, risk level and financial gain is not a suitable argument to increase the risk. There is no bar to flying beyond 65 however, there is no cause to increase the risk to paying passengers who place their trust in the regulators and operators.