Aside from liability issues, I suspect issues of real-world skid management have variables that even a DE course may not successfully address (and may in fact provide a false sense of knowledge/judgment/skill)...
Have read much of the tech stuff re: these cars....theory and claims (in various controlled settings) mean very little to me, unless stuff works in real-world messy situations

....would argue one best understands dynamics of own car on public roads largely via driving expce (esp w/precise, safe driving even in mundane commuting....find it hard to believe, no matter how many DEs one attends, that guys who drive some POS SUV 90% of time, often where driving is stop-and-go grind on flat, straight roads, will be particularly adept drivers during some ?40 fair-weather, wkend days/yr (40/yr in CA; some 20/yr ex-CA) they actually drive an alleged sportscar....to golf club or dinner w/the wife

) and appropriate risk/reward judgments, always leaving ample margin for error, given the numerous dynamic/environmental (i.e., other cars/drivers) variables one cannot easily predict instantaneously on a public road when an emergent situation arises....
Need to consider (esp for public roads) behavior of car/tires/brakes/chassis/stab ctrls/ABS, etc vs wet (various degrees of water on roads)/dry; bumpy/smooth; flat/hills/camber changes of road; neighboring cars in lanes/oncoming/tailgating cars, etc etc...
Would observe that difficult to scientifically quantitate braking in wet w/various perf tires (and how do perf tires behave/decay after 1K vs 5K vs 10K mis?)&chassis parameters; PCCB vs steel; does PCCB (or steel brakes) become water-logged (and slower/less effective to respond) after cruising in heavy rain w/o periodic applic of brakes????

W/each of these cars, even for those capable drivers accustomed to daily-driving many new P/F/AMG on fast, hilly, bumpy, dense-traffic fwys/roads, need at least a few hundred miles in varying conds w/a few "dry run" evasive maneuvers on empty roads and real-world emgcy maneuvers to really become more comfortable w/any car....am familiar w/996TTS, but found various subtle, but important, chassis/stab ctrls/braking/tires diffces vs 997TT, esp seen in various, real-world, stress situations...

To me, the learning curve involved in understanding the dynamic nuances of each new, latest/greatest-tech car is incredibly enjoyable, whether in mundane daily commuting (even on a winter rainy day in dense traffic, dodging flipped-over, allegedly-invicible SUVs

) or on a sunny wkend drive in a favorite set of empty twisties....