Comfort - because children are generally more at ease with people they know. Love and attention - if it's a close family member who has genuine affection for your child. Familiar location - in your or a relative's home. Relative care can be lonely for the child and your relative.
Child care raises unexpected and sensitive issues that can complicate family relationships.
You and your relative may underestimate how time consuming and tiring it is to provide child care. Ideas about discipline may differ. Children's needs change as they grow, and you may need to change child care arrangements. Take time to talk regularly, when children are not around. Discuss and clarify your ideas about discipline and how you want your relative to set rules and guide your child.