You can do that, but you will likely be arrested for indecent exposure. Ancient humans did not wear clothes. However, when some people migrated out of Africa and ended up in cold climates such as China and Europe, they had to wear clothing. After tens of thousands of years of evolving to adapt to cold climates and wearing clothes, they brought their habit and customs to the rest of the world after they invented agriculture. Now, even people who did not wear clothes as recently as the mid-20th century are shamed into wearing clothes, even if they still do not need to because of hot climates where they live (e.g. Africa, Hawaii, and tropical islands in Asia.