Broadcaster and Alzheimer's Society ambassador Angela Rippon told ITV News that dementia sufferers are fearful of leaving their homes because some communities do not understand their condition.
When asked why some people are reluctant to leave their homes, Rippon said:
She added: "If you have a society where people don't understand the needs of people with dementia, don't understand how to recognise it, the support that someone with dementia needs, then obviously as an individual you are going to withdraw back inside yourself.
"You're not going to want to go out into the public and be humiliated in that way."
More top news
A coroner has ruled a "series of failures" contributed to the death of a newborn.
Nearly £2,000 on beeswax candles and many thousands of pounds on lunches with foreign dignitaries: the Commons Speakers' expenses laid out.
Kenya's world class athletes have told ITV News of their mixed hopes on the country's ability to save the nation's reputation before Rio.