When I did a startup in San Francisco in 2008, I stayed in a shared house in South San Francisco with immigrants. I was informed after the day I moved in that I wouldn't have access to the kitchen. My rent was $500 per month.
I know things are more expensive now than they used to be, but I just clicked over to Craigslist and found hundreds of listings for less than $1000 per month for a room in a shared house.
Here's one:
https://sfbay.craigslist.org/sfc/roo/5557466505.html
And that's in the middle of the city.
Here's the search...they're all over the place:
https://sfbay.craigslist.org/search/roo?max_price=1000
I'm sorry, but I was over 30 years old before I lived by myself without a roommate. This is just plain entitlement and whining.