<P> Being barefoot in public is more common during warmer months, and often accepted as a social norm, however this does not extend to metropolitan cities such as London, but more for rural areas and more common for young children and teenagers . Some British schools also allow children to attend school barefoot in warmer months, and encourage it for indoor and outdoor physical education lessons . The National Health Service has recommended that people "go barefoot or wear open - toed sandals whenever you can in the hot weather...to help stop your feet getting sweaty and smelly ." </P> <P> In South Africa barefoot walking in public is part of the predominantly white Afrikaans speaking culture, although English speaking people also often walk barefoot in public, especially in the summer months and in cities such as Cape Town . The National Guidelines on School Uniform list shoes as an optional item while the Draft Guidelines state "Pupils, especially in lower grades, should also be permitted to attend without shoes in hot weather". Most children attend school barefoot . In many schools, the dress codes either encourage kids to attend school barefoot or prefer kids to attend school barefoot, especially in the summer months . Some South African schools have sport uniforms where bare feet are compulsory, such as primary school rugby . Another sport where bare feet for kids are compulsory is "tou trek" or tug of war . Being barefoot in public is generally tolerated . In South African shopping malls, stores, and events, it is not an uncommon sight to see barefoot adults, kids and especially teenagers and young adults . </P> <P> In some parts of the United States, where taboos against barefoot walking are strong, it is common for people to wear the same shoes indoors and outdoors, and for guests to keep their shoes on when visiting other people's houses . Youngstown, Ohio, actually did have an ordinance prohibiting barefooting until it was struck down as unconstitutional . However, in the early 18th to 20th century many children in rural areas of America often went barefoot due to poverty . Many stores, restaurants, and other public venues in the United States employ dress codes prohibiting bare feet . While private business owners are free to set their own policies, many cite different health regulations, though these typically are occupational safety requirements that pertain to employees only . </P> <Table> <Tr> <Th> Part of a series on Slavery </Th> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Contemporary (show) <Ul> <Li> Child labour </Li> <Li> Child soldiers </Li> <Li> Conscription </Li> <Li> Debt </Li> <Li> Forced marriage <Ul> <Li> Bride buying </Li> <Li> Wife selling </Li> </Ul> </Li> <Li> Forced prostitution </Li> <Li> Human trafficking </Li> <Li> Peonage </Li> <Li> Penal labour </Li> <Li> Sexual slavery </Li> <Li> Wage slavery </Li> </Ul> </Td> </Tr> <Tr> <Td> Historical (show) <Dl> <Dt> Antiquity </Dt> </Dl> <Ul> <Li> Ancient Rome </Li> <Li> Babylonia </Li> <Li> Ancient Greece </Li> </Ul> <Dl> <Dt> Topics and practices </Dt> </Dl> <Ul> <Li> Atlantic slave trade <Ul> <Li> Middle Passage </Li> </Ul> </Li> <Li> Arab slave trade <Ul> <Li> Ghilman </Li> <Li> Mamluk </Li> <Li> 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Where did no shoes no shirt no service come from