Recently PPLs can be checked out to do trial lessons for a club.
That is incorrect. To provide an air experience flying lesson a pilot must also be an FI. A PPL/FI who has not passed the CPL exams may only conduct and air experience flying lesson for a prospective LAPL holder.
A-to-A, day VFR 'Introductory flights'
may be conducted by non-FI PPL holders, but the associated regulations and CAA policy are quite specific. These may only be a minor part of an ATO's activity.
'Wingly' cost sharing has been banned by some flying clubs and aerodromes for aircraft rented from clubs based there and it seems that some insurers are beginning to take note, from some reports.
As usual, if the greedy few end up causing the rules to be hardened to the detriment of others, they will only have themselves to blame.