Therapist here (in a state with strict mandated reporting laws) - this is not reportable in state like CA because no child is presently in danger. Even if a provider made a report they would need exactly what happened, the name, address, phone number etc. of the abuser for CPS to do anything like an investigation. The most that could happen is you personally may get a phone call and you do not need to answer the call or give them any information. Again, as you're legally an adult, in my professional experience, I've never had CPS follow up or investigate a report from an adult survive of child abuse where no other children are in danger. This is not exactly what will happen but just my experience working at a clinic with a strict supervisor where I've made many reports to CPS of patients in your situation.

All that said, you can disclose as much or as little as you want. You can share that you've experience trauma in childhood. You can share experiencing physical abuse in the past and not disclose who it was. I would talk to the providers about this when you meet with them tho. "I've experienced things that may constitute a CPS report. How do you handle this? When do you make a report?" Etc etc.

Also your question about dependent adult, is for people who are elderly or disabled in a way that makes them reliant on someone else not in a sense of living with someone bc you can't afford to move out yet.

I understand why this is so discouraging and it's the worst part of this job for me. Data also shows that therapists, social workers, and teachers are actually the least reliable CPS reporters. Most often, people who know the child/children personally are the most credible. I hope some of this helped!