 the process of promoting and supporting the physical, emotional, social, and intellectual development of a child from infancy to adulthood  is called Parenting. Do you have kids?
I do not.  What else do you know about parenting
it also refers to the intricacies of raising a child aside from the biological relationship.
Are there classes you can take to teach you how to be a parent?
there may be but The most common caretaker in parenting is the biological parent(s) of the child in question, although others may be an older sibling