This decision is Leadership suicide at its best. I have been a member of HM Royal Air Force long enough to have a pension in-sight. With time served both on the ground and in the air. During that time I have seen this 'decision' acted upon at both Sqn and Stn level, and each has died a death within weeks if not months. The logistics required to enforce it (changing room) are not available at every sqn, as even lockers are not in abundance. I give it 6 months max.
As an aside, when steely eyed killer pitches up (in flying suit) at the local garage to refuel his thoroughbred steed, be it 2 wheels or 4, does much to sow the seeds of the next generation of military flyers. Perhaps ex-flyer now adorned with much braid received an "A'right guvn'r" at his petrol station and decided that it was time the poacher became gamekeeper.
The aircrew / groundcrew rig debate is immortal if a little tedious.