If you would like to avoid going to court to assign guardianship, there are a couple other choices that can give you some authority to care for the child while the parents are unable to do so properly. Parents can sign a Power of Attorney for a Minor Child which will give you physical custody of the child, giving you permission to make choices about a child’s medical care and education. This agreement must be signed in front of a notary and it can be revoked at any time by the parents.
Another option would be for a relative to become the child’s caregiver and he/she will need to sign a Caregiver’s Authorization Affidavit which will give the relative the right to get medical care and decide on the child’s education. This form is only available for relatives of the child if the child is going to continue living in the State of California. This can be cancelled at any time by the parents.
Both of these forms are often not accepted by health insurance agencies, so if you’d like to register your child under your health insurance, you’d need to look into getting a court ordered guardianship. Though schools and medical services are supposed to accept the forms, there is often some opposition to do so and in the end, it might just be simpler to go to court to become the child’s official guardian.