"The Dursleys have a very strong definition of what "normal’ is. A strong British family with a working father, a house-wife mother, and a child or two. Their entire lives revolve around their social standing, and being seen as "normal’. Everything slightly "abnormal’, they disapprove and resent. And, in turn, anything they disapprove and resent is seen as abnormal, even if the rest of the country unified to try to tell them otherwise.