What role typically has legal responsibility for a child in a custodial arrangement?

In a custodial arrangement, the custodial parent typically has the legal responsibility for the child. This means they are recognized by law as the primary caregiver and are responsible for making decisions related to the child's welfare, education, and overall well-being. The custodial parent has the legal authority to provide day-to-day care and ensure that the child's needs are met.

The custodial parent's responsibilities can include overseeing the child's health care, education, and general upbringing. This role is often formalized through custody agreements or legal court orders that outline the rights and duties of the custodial parent. The other roles, while they may provide support and care for the child, do not have the same legal standing or responsibilities that the custodial parent possesses in the context of custody arrangements.