The decision in plain terms
A site decision concerns a particular shopfront, not a fashionable district. Define whether the business serves workers, residents, students, shoppers or visitors, then compare the customer missions that can genuinely recur.
A street with heavy pedestrian traffic can still be unsuitable if visitors are not likely to become customers. Compare local routines, access, tenancy conditions and alternative sites. In Scotland, that decision should use local evidence and the actual obligations of the proposed site rather than estimates borrowed from another country.