Most families do not wake up one morning and decide that Mom or Dad needs help. The realization arrives slowly. A phone call where the same question is asked three times. A refrigerator with spoiled food in it. A stack of unopened mail on the kitchen table that never used to be there. Each of these moments can be explained away on its own. Everyone forgets a name now and then, and everyone lets the mail pile up during a busy week. The harder question is when a handful of…