Parents are: Research Associate in the field of Child Development and Human Relations
Grandparents are: Senior Research Associates in the field of Child Development and Human Relations
Great grandparents are: Executive Senior Research Associates in the field of Child Development and Human Relations
Parents -- mothers and fathers -- provide a continuing program of research, in the laboratory and in the field, indoors and out.
Each is working for their Masters, (first their Spirtual Source, and then the whole family) and already have as many credits as they have children.
Of course, the job is one of the most demanding in the humanities, (any mother, father, child care provider, parenting guardian, care to disagree?) and often work 14 hours a day, (24 is more like it)... Although the job is more challenging than most run-of-the-mill careers, the rewards are far more of a satisfaction, rather than just money.