I've done a very limited amount of jump flying in Oz and was also compelled to wear a 'chute. I didn't object really! I never recall seeing a jump pilot wear one in the UK though, although I do recall a similar incident at Dunkeswell in the late 70s. Aircraft was C185, G-BBEX I believe. I recall that the parachutist was finally cut free from the tail of the aircraft shortly before reaching ground level! All fortunately survived.