Thunderbird 5 et al,
The impact on other users will depend on how dumb or smart the aerodrome operator is ---- there is NO LEGAL REQUIREMENT for the whole airfield to become "security controlled" --- only the secure ramp and secure boarding area.
The " [un-permitted expression] in the woodpile" was/is subsidies for fences and local councils/aerodrome leaseholders chasing the biggest bucket of money ---- and local councilors who like to boast that they have a "much safer airport", as if every country town was a hotbed of Islamic extremism.
Tootle pip!!