A report by the Muscular Dystrophy Campaign "Trailblazers" found 75% of those questioned felt they had no choice but to shop online due to a lack of physical access.
One of those who took part in the survey was David Gale from Carlisle.
He's encouraging high street businesses to do more to support shoppers with disabilities and stop ignoring them.
Kim Inglis went to meet him.
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60-year-old Frank Robertson doused Vaughan Livesey in flammable fluid which he lit with a 10-inch blow torch flame inside the victim's shop.
A fundraising page created by a Lake District chef, who died following the London Marathon, has seen donations top £90,000.
29-year-old Matt Campbell collapsed after running 22.5 miles. He received medical treatment at the scene, but died later in hospital.