I wonder what the results would be if they included grand-parents (and similar close relatives) in the count of time spent. Because parents are not the only clo

I wonder what the results would be if they included grand-parents (and similar close relatives) in the count of time spent. Because parents are not the only close adults being able to provide a 'parental' role of supervision and care; and families have gotten more and more split along the years, with an always more isolated parent(s)-child(ren) nucleus. Speaking of isolation, father's time may rise, mother's time may rise as well, and yet the time spent with parents may decrease too: think of the multiplication of single mothers (and to a lesser degree single fathers).