You bring up visibility of the homeless, that is one thing, but it is besides parent's point. There are government statistics on the homeless population and California has a huge share of it. See the 2022 HUD report [1] (also note the distinction between homeless and unsheltered):

• More than half of all people experiencing homelessness in the country were in four states: California (30% or 171,521 people); New York (13% or 74,178 people); Florida (5% or 25,959 people); and Washington (4% or 25,211).

• California accounted for half of all unsheltered people in the country (115,491 people). This is more than nine times the number of unsheltered people in the state with the next highest number, Washington. In the 2022 point-in-time count, Washington reported 12,668 people or just six percent of the national total of people in unsheltered locations.

[1] page 16 of https://www.huduser.gov/portal/sites/default/files/pdf/2022-...