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Modern societies expect people to wear some clothes, except at naturism venues or places such as a sauna. In cold weather or under burning sun, we are usually better off with good clothing. Sometimes, certain types of clothing are legally mandated in addition to being culturally expected.
Even if there are no such expectations, wearing clothes that no locals wear (or wearing them out of season, or out of the proper occasion) will mark you as an outsider and may make you a magnet for touts, con men and muggers. Dressing more like the locals usually makes fraternization easier.
Clothing is also a favorite item for travel shopping, especially for souvenir t-shirts, locally crafted clothing or items that are cheaper than where you live.






See also