I'm not sure what the point of your comment is. Are you disagreeing that SF is very easy driving? There's very little traffic. The roads are a perfect grid. Nothing ever blocks the lanes. The roads are all very wide so finding a place to stop is easy. Etc. etc.
Most driving in the world is not like that.
Double parked vehicles are also a regular occurrence in SF, and even triple parked vehicles happen frequently enough to be a problem at fleet scale.
I just went to a random location - I promise it's not cherry picked - on streetview:
https://maps.app.goo.gl/5u8BGVgYSnLz9kj39?g_st=ac
How easy is that? I have absolutely no idea how it's going to deal with actual parking on the street like this
https://maps.app.goo.gl/UMwkJau85gMG4txG9?g_st=ac
That's a 2-way road. Quite annoying but pretty common in the UK.
Don't get me wrong - they've absolutely done the right thing by starting in the easiest possible places (Tesla's plan is ridiculous in comparison). I just think it will still be at least another decade before they come to more difficult driving locations.