The post you are reporting:
All town centres including Dover's need to cater to what people want, this is rapidly becoming a mixture of
General Retail:
Food, clothing, footwear, household goods, jewellers, fancy goods, small furnishings & homewares
Services:
Hairdressers & beauty treatments, medical, telecomms/IT repairs, legal, accountancy, advisory (CAB, local government, employment), property (estate agencies, rental agencies)
Leisure:
cafes, take aways & restaurants, public houses & off-licences, entertainment venues, gallery spaces etc.
Where towns like Tenterden, Lewes, Royal Tunbridge Wells, Brighton etc excel is having an eclectic mix of offerings in the first and last sections above skewed particularly to independent traders, this provides quirkiness, and a sense of the unique.