One track has said it..." serious reservations about ..aerobatics with pax in an old aeroplane (etc)....and I would add...WITHOUT parachutes!!! in any type of aircraft wood or metal
Surely, as things can and do go wrong, what price a bit of cheap "insurance" and giving those on board at least another option.
In the States where the lawyers bite hard, for even just a joy flight in a Texan, they get you kitted up and briefed.
There has been the odd occasion where the wearing of didnt make a difference to the fatal outcome, but there are many more examples where a 'chute would have made a tragic outcome just an adrenalin rush.
see the video clip of the 2 Cessnas that had a midair 'ding'...ok full of parachutist passengers anyway but the pilot of the fiery broken one could depart as well.
instead of having to ride it down...as have others
RIP those Tiger 2
my 2c