That's why a UK branch of Tesco has introduced a new 'relaxed' checkout lane to make shopping less stressful for vulnerable customers.
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The idea, launched yesterday at the supermarket giant's branch in Forres, Moray, is intended to remove the pressure of piling items onto the conveyor belt and bagging them up.
Tesco said the lane, developed with help from Alzheimer Scotland, was "aimed at anyone who just wants to take their time," including shoppers with dementia, social anxiety and autism.
Tesco Forres Facebook
A sign on the checkout reads: "Relaxed checkout: Feel free to take as long as you need to go through this checkout today."
The idea was developed shop assistant Kerry Speed, who is the store's 'community champion'.
She said: "Our new relaxed checkout is open to all.
"Whether a customer has a medical condition which requires them to take things a little easier, or they value an extra couple of minutes to chat to their checkout advisor, we want them to be confident they can shop at their own pace."
The idea developed from one of the store's regular dementia information sessions, held to help staff understand and support shoppers with the disease.
The lane will operate on Tuesday and Wednesday mornings at Tesco in Forres, and will be manned by team members trained by Alzheimer Scotland.