The training we give drivers on how to operate cars and the failure modes the training prepares for are designed for cars without FSD, though, and I'm not sure it adequately prepares drivers to compensate for the possible failure modes of FSD. Especially when those can change from release to release, making it hard to get used in any meaningful sense to the system. This is also a lot more stressful than regular driving and may require better driver condition and more frequent rest.

Unfinished vehicles on the road are nothing new; all companies developing cars move pre-prod hardware across public roads. However it usually requires several levels of additional licenses and special safety driving training and instruction before you're allowed to operate a car that may surprise you by behaving very different from a certified production road car. And regular renewal thereafter.

I think what's unprecedented here is the scale of the pre-prod testing, the type of experimentation being done and how the drivers are selected. And also the degree to which it's designed into the approach of the experimental engineering being done that it must fail to improve (by widening the training set). There's enough new here it should be discussed imho.

Side note: German driver's license training now includes some material on assistance systems and how they may behave unreliably and how to prepare for their failure modes ... but of course this doesn't retroactively expose existing license holders. The rate of change in driver-car interaction being so high is also a novum.