Cats
Staff Cadets could not 'automatically' take passengers.
They had to make it to a certain Grade to take passengers much like the BI Grade in the BGA world. A G1 (Passenger Carrying) in the ATC world would probably equate to the old 'Air Experience Instructor' Rating or 'Passenger Pilot' in the BGA of many years ago............
G1 used to have to have at least 50 solo flights before they could be considered for the test..... in practice this meant at least 75 solo flights ( so probably 500 launches) before they could be considered. Then they had to take a test with a 'Flying Supervisor' before the Grade was issued. The Grade was subject to Quarterly check and Annual renewal - so pretty rigorous actually (more than most BGA clubs that I've been a member of.......)
Arc