It used to be called Decoration Day, and was observed on May 30, regardless of the day of the week. That was the day when relatives would gather at cemeteries and "decorate" the graves of loved ones lost in battle, with flags and flowers. Some families still observe this practice. Why? First, it's a sign of respect. More important, it's an effort to keep the names of those loved ones alive in our hearts and minds for yet one more generation, before they fade into oblivion.
In my mind, changing the name and date of the holiday has robbed it of its original meaning, and now it's just another 3-day weekend for blockbuster sales and mayhem on our highways.
Postscript: As I was leaving a doctor's office several weeks ago, I stopped at the desk to make my next appointment. "How about June 6th?" the sweet young office clerk asked. "Fine, that's D-Day," I responded, as I scribbled the date into my calendar book. "What's D-Day?" she asked. When I explained that it was the greatest invasion in the history of warfare, leading to the liberation of Europe 80 years ago, she asked: "Why wasn't I taught about that in school?"