Painting and Habitability in San Francisco

[Patrice Pominville]

From what I can gather from various forums and reading the articles of law, painting, changing carpets and other such cosmetic maintenance are NOT the responsibility of the landlord, even after 10 years. Can anybody confirm or deny that is the case. Although most source seem to confirm this, some articles seem to imply the contrary:

https://homeguides.sfgate.com/can-landlord-charge-new-carpet-new-paint-lived-there-10-years-44474.html

If anybody has first hand experience with this in San Francisco and can provide some insights, it would be much appreciated. I'd like to have a solid understanding of my responsibilities in the face of the law before responding to such requests by tenants.

Thanks,