Any different than with a human taxi driver?
It's not about absolute reliability, it's about how well it compares to the alternative, which is human taxi drivers. And the thing is, you don't hear about human car accidents because it's so common that it's not worth making the news.
Another very interesting thing about robotaxis is agency and blame. Taxi driver had an accident? Just that driver is suspect. Robotaxi had an accident? They're all suspect.
Waymo is 100% with zero fatalities.
But then again, the Concorde was the safest airplane ever built for nearly 30 years, until its first crash and then it was the most dangerous passenger jet ever with 12.5 fatal events per million flights.[1]
Lies, damned lies, and statistics.[2]
0: https://assets.ctfassets.net/vz6nkkbc6q75/3yrO0aP4mPfTTvyaUZ...
1: https://www.airsafe.com/journal/issue14.htm
2: https://en.wikipedia.org/wiki/Lies,_damned_lies,_and_statist...