I’ve let friends drive my GTO, but none with the TC turned off. With the stock 245’s it’s pretty easy to break the ass end loose and none of my friends have much RWD vehicle experience.
Been teaching the wife to drive stick and a few times I’ve come very close to picking up a beater and just throwing it away when she was done learning.
And I always park it in gear with the ebrake on. For you neutral/ebrake people wait until you have your first experience with your ebrake not engaging fully and your car rolls away.