No two Caregivers are exactly alike, so how can they have so much in common?

I've just spent the last two days making my rounds. I bring my Family Wellness Workshops to assisted living homes, hospitals and active senior residences. I'm always amazed at the variety of stories I hear from the Family Caregivers who attend my workshops.
One daughter described leaving her son and grandchildren and commuting from the southwest of the USA all the way across country to be with her dad whenever she can. Another daughter was local and came to the home every day during the week to take her mom shopping, driving, and to her various appointments.
It wouldn't seem that these two daughters had much in common but once they started talking it became clear that they did. Both of them loved their only surviving parent very much. Both of them worried about the future aging of their loved ones and whether they could handle the gradual decline that was in their future. Both of them felt guilty that they weren't handling things properly or doing enough for their loved one. Both of them had siblings who were making things worse by not helping out, being critical and disagreeing with important decisions that needed to be made.
Family Caregivers have very different situations that they are dealing with but when they get a chance to compare notes they can see how much they are actually alike.