Older people understand that not everything can be cured. They appreciate small improvements. Simple attention can make them feel much better. The person of the physician is more important to them.
Old people are interesting.
They think you are young even when you aren't. In geriatrics, most patients have many diseases most of the time. Usually, multiple causative factors underlie single functional problems. Rather than pursuing a single cause, the clinician must usually find any reversible conditions. There would one or two outliers with a congenital or chronic illness.