My question involves collection proceedings in the State of: California
There are many other questions similar to this on this thread but mine differs in what I think is an important way.
I was in a car accident when I was a minor (17) - I was not at fault. At the time my parents were divorced and I was on my father's auto insurance as well as his medical insurance from his employer. The auto insurance people told me to go to the doctor to check out a possible back injury from the accident, and with their advice I decided to go. I did not have either parent with me, nor do I recall telling them that I was going. I recall there was a paper I had to sign upon getting my check up, and I signed it myself. My parents never signed anything.
The auto insurance company did not really ask about my medical results, and sent someone out to look at my car to assess damages. They wrote up a report of how much each thing on my car would cost to fix and then wrote me a check for my auto repairs only - medical was not mentioned. I assumed (as I did not know how car insurance worked) that the person at fault's insurance paid for the medical exam I had been asked to take.
Fast forward into the future (slightly) - I am now 19 years old and am being called by a collection agency regarding the medical debt from these back X-Rays which I never realized I owed.
I had learned in a law class some time ago that in California, a contract signed by a minor is not valid. Is that true? Am I actually liable for this debt? Could they go after my parents even though they never signed a thing?
Thanks for reading.

