The confusion about Alzheimer's like behavior occurs because early dementia is like a chicken/egg disease.
What counts more?
The bizarre behaviors like meanness, worries about money, shuffling the feet?
Or, the perception that the person can function normally and perform tasks like driving and shopping?
Most people will opt for a simple explanation -- they are just getting old. This explains the new and different behaviors they see.
Google Search Recommended
Original content +Bob DeMarco , +Alzheimer's Reading Room
To learn more about Alzheimer's and Dementia care visit the Alzheimer's Reading Room