In my opinion, Father's/Mother's Days are really "children's days."
Father's Day is a day when a child is able to "take" their father fishing or "make" him his favorite sandwich. It's a day for a dad to at least "fake" that the child picked "dad's fave fishing hole," or "loved" his baloney and butter sandwich.
In my opinion it's an easy thing to do for a child. I think it's American tradition--and it's one that shows how we value fatherhood.
I took the call, because it had to be important. And it was. Kid scored expert with grenades and was allowed to call me to report it.
That whispered "Thanks, dad" was the assurance that my love and effort for my children was not wasted, and was appreciated.
Beats the hell out of all the manufactured greeting card holidays.
/johnny