That is the difference between "safety first" and "my personal convenience first", which again boils down to insurance liability.
As long as you pay for the people you injure and kill on the way, you can let your Tesla drive you anywhere, even if it can't do it. You can let it try, and maybe it fails. That's totally fine. You will be held liable, but you get to enjoy your trip to Tahoe.
Self-driving companies that have to pay for the systematic faults of their systems will usually move different.
As long as you pay for the people you injure and kill on the way, you can let your Tesla drive you anywhere, even if it can't do it. You can let it try, and maybe it fails. That's totally fine. You will be held liable, but you get to enjoy your trip to Tahoe.
Self-driving companies that have to pay for the systematic faults of their systems will usually move different.