How you choose a temporary guardian for your child is up to you, the only requirement by the state is usually that the guardian should be of legal age and be capable of understanding the agreement. Since your child's well-being is your highest priority, you should also ensure that the caregiver is capable of making the right healthcare decisions for your child. You should also make sure they're people who share your moral or religious beliefs, so they would administer healthcare to your child in a manner you are comfortable with.