How is China town and how are the cable cars.
I stayed at the top of the hill for a week in the mid 90's for a convention. Every night we took the cable car down, then back up - getting on and off along the way in various places. China town and the cable cars were my favorite parts - although the cable car drivers were grumpy as all get out. We were young engineers and just wanted to know how it worked, and they had no interest in talking (even when we were sober).
I haven't been on a cable car in maybe a decade. However, I went at a time when my kid was still free. It's clearly a tourist-only thing now. I remember when the cable car surcharge was maybe 25 cents over regular adult fares. It used to be OK to ride on a regular MUNI monthly pass and locals would take it to get around.
How it works is pretty simple. I think they have pictures at the Cable Car museum.
As far as Chinatown goes. It's kind of weird. Everything is more expensive, but it's still somewhat easy to eat relatively cheap. What's really disappointing is that there are no more big room dim sum houses in San Francisco's Chinatown. This was the last one that was open. Supposedly the building is being taken down for housing, but the current owners have been promised a new space in that building where the housing will be on top of the restaurant. So they closed the restaurant and put in a store until it's supposed to be dismantled. But that hasn't happened.
https://hoodline.com/2017/04/new-asia-restaurant-in-chinatown-to-become-affordable-housing/


You can still find places like that. But they won't be in Chinatown. Maybe the Richmond or Sunset, and there's supposedly a nice place at the Embarcadero Center. Also south of San Francisco in non-touristy places like Millbrae or Daly City.