the sum total of the rights of the parent or parents in and to the child as well as the rights of child in and to the parent or parents. The following are "parental rights" protected to varying degrees by constitution: physical possession of child; right to discipline child; right to control and manage minor child's earnings; right to control and manage minor child's property; right to be supported by adult child; right to have child bear parent's name; and right to prevent adoption of child without parents' consent.