Tesla uses simulation to but there is no replacement for real world data. The real world is crazy and Tesla can see people driving in real condition from Alaska to Miami Florida.
If you think driverless car training in simulations is a playstation game, then you're projecting with your comment. Also, because of weather.
Waymo just went live with full driverless for the public in Phoenix. Tesla can't do full driverless so I think that evidence settles the debate of simulated vs. data collection, unless you have evidence otherwise?
Waymo is the first fully driverless vehicles to market, which Tesla has yet to deliver, so the fact you calling it a "losing operation" shows your confirmation bias here. Did you buy a Tesla with this promise, perhaps?
You still didn't answer the question - where's the evidence?
The self driving AI can gain 100 years experience in just 1 day using simulation: https://blog.waymo.com/2020/04/off-road-but-not-offline--sim...