This is Health and Safety at it's most ludicrous. OK - major airports with lots of vehicles scurrying about between sites and aircraft - good idea. But the only vehicles airside at Gamston are the bowser and the aircraft tug.
If people are stupid enough to walk in front of a moving aircraft then they shouldn't be airside in the first place, and the only people airside at Gamston are people who fly to or from there who know what it's like being around aircraft - on what basis or incident have they decided on this farcical ruling for such a small airfield - or do they have delusions of grandeur!
This is obviously just another case of unnecessary bandwagon jumping. It's this sort of blanket rulemaking that starts the ball rolling everywhere until they gather momentum and become the norm. End result - someone then makes it into a law that means the owner with his own strip has to wear one when he walks between the gate and his aircraft. LUDICROUS