Some people treat elderly so that as if they will never grow old! Islam teaches us that the elderly need love and affection as it is mentioned in this tradition by Prophet Muhammad (PBUH):
“Every morning and night, God the Exalted looks upon the face of the old man and says: O My servant! You have become old, your bones have become fragile, your skin has become delicate, your time of death is near, and the time has come for your arrival before Me. Therefore, be ashamed before Me, for I am too ashamed of your white hair to chastise you in the Fire.”
(Safinah al-Bihar, v.1, on white hair)