Prostitution has been ban in some countries but there are some countries that doesn’t seem to have issue with this line of business.

below are some of the countries that have legalized prostitution

 

FINLAND

Prostitution is legal in Finland, but selling and purchasing sex in public is illegal, as is purchasing or pimping a trafficking victim. Street work is banned, but like many industries nowadays, the Finnish "red light districts" are all accessible through the Internet and personal ads.
In addition to decreasing street-workers, cyberspace has also contributed to a growing number of foreign sex workers operating in Finland through ads and massage parlors.

Costal rica

Prostitution is completely legal in Costa Rica. In fact, it’s a common profession, especially in popular tourist destinations. The problems are with the activities surrounding prostitution.
Pimping is illegal, prostitution rings are illegal, and there is also a huge problem with child prostitution and human trafficking. Costa Rica is, unfortunately, a common transit and destination point for women and children who are being trafficked for sexual exploitation purposes.

Canada

Canada has no law against the exchange of sex for money; it’s pimping or owning a brothel that is prohibited.

It’s also illegal to market or communicate publicly regarding prostitution. Much like Belize, Canada has established contradicting laws. It is legal to be a sex worker, but as of 2014, it’s illegal to purchase sexual services.

Germany
There are an estimated 400,000 prostitutes working in Germany, and their revenues are equivalent to companies like Porsche and Adidas. Prostitution brings in about six billion Euros each year with a clientele of an estimated 1.2 million – it’s more like a sex empire than an industry. The government, of course, withholds a portion of these revenues to contribute to social benefits and sex workers have pensions, health insurance, a regular 40-hour-workweek, and the option to join sex worker unions.
Things aren’t perfect, of course; those who are forced to share earnings with brothels are reluctant to hand over more money for taxes and, despite the nationwide laws, each city has the right to ban prostitution in their area.

Greece
It was the ancient Greeks that introduced the world to high-class prostitutes back in the sixth century BCE. Nowadays in Greece, as long as you’re over the age of 21, registered at the local prefecture, and a medical card carrier whose card is updated every two weeks, you can do pretty much anything that doesn’t involve sex trafficking. Brothels are legal and pimping is legal, but only ten out of the 525 brothels in Greece actually have a license.