Licencing
At a joint meeting some years ago hosted by Oxford and organised by AOPA and GAMTA at which the CAA was represented by Ron Elder ( who was very instrumental in developing the NPPL ) a straw vote was taken on the very subject.
The vote was overwhelmingly in favour of retaining the status quo.
The majority of the Flying Schools/clubs attending were those based at the larger outer London GA aerodromes and at airports throughout the country. There appeared to be a split between these people and those from smaller club ran aerodromes. I came away with the impression that those based at the large aerodromes and airports may well have been afraid that the smaller club airfields could easily undercut in costs and they were afraid of that. The CAA should review the situation with more pragmatism.