Clothing laws vary considerably around the world. In general, in most countries, there are no laws which prescribe what clothing is required to be worn. However, the community standards of clothing are set indirectly by way of prosecution of those who wear something that is not socially approved. Those people who wear insufficient clothing can be prosecuted in many countries under various offences termed indecent exposure, public indecency or other descriptions. Generally, these offences do not themselves define what is and what is not acceptable clothing to constitute the offence, and leave it to a judge to determine in each case.
Most clothing laws concern which parts of the body must not be exposed to view; there are exceptions. Some countries have strict clothing laws, such as in Islamic countries. Other countries are more tolerant of non-conventional attire and are relaxed about nudity. Many countries have different laws and customs for men and women, what may be allowed or perceived often varies by gender. Cross-dressing is in some areas specifically illegal, especially a man wearing women's clothing.
Separate laws are usually in place to regulate obscenity, which includes certain depictions of people in various states of undress, and child pornography, which may include similar photographs of children.
In some countries non-sexual toplessness or nudity is not illegal. However, private or public establishments can establish a [dress code] which requires visitors to wear prescribed clothing.
There are a variety of laws around the world which impact on what people can and cannot wear. For example, some laws require a person in authority to wear the appropriate uniform. For example, a policeman on duty may be required to wear a uniform; and it can be illegal for the general public to wear a policeman's uniform. The same could apply to firefighters and other emergency personnel. In some countries, for example in Australia, the boy scouts uniform is also protected.
In many countries, regulations require workers to wear protective clothing, such as safety helmets, shoes, vests etc., as appropriate. The obligation is generally on employers to ensure that their workers wear the appropriate protective clothing. Similarly, health regulations may require those who handle food to wear hair covering, gloves and other clothing.
Governments can also influence standards of dress shown on television through its licensing powers.
In addition to nude beaches and similar exceptional locations, there are some public events in which nudity is tolerated more than usual, such as the naked bike rides held in several countries.
The Advantages are : The Social politeness is being protected , the crime level decreased and free sex attempt decreased but ,
The Disadvantages are : How about the original culture in Indonesia? We Wear kemben and such things , is it considered obscenity?
But no matter what , i believe if people cover their body properly surely good things will happen to them . So , i agree with Indonesian system that did not allow us to "not cover" our body in public places .