“Accessory dwelling units are a relatively low-cost way for homeowners to play a big part in expanding our city’s housing stock, and make extra money while they’re at it.” - Mayor Eric Garcetti

Yes, accessory dwelling units are a financial benefit to the homeowner, but on a larger scale, they can help alleviate some of the pressure currently on the LA housing market.
There are over 500,000 single family homes in LA, and with new legislation passed, most of these are eligible for an ADU, and potentially a junior ADU.
Housing costs have become so inflated in California that some cities, including Los Angeles, lost residents in 2018. If LA wants to remain a vibrant economy, where we experience growth, we need to address housing affordability.

The flexibility to age in place, generate rental income, or create more affordable housing, ADUs offer a possible solution to California's housing needs.