Is it illegal for adult men and women to open a house

If both men and women are adults and single, it is not illegal. In real life, it is very common for men and women to stay in hotels. For unmarried men and women, it is not illegal to stay in the same hotel as long as they are single adults. It is not illegal for unmarried men and women to stay in hotels as long as they are single adults. The unmarried relationship in real life depends on the specific situation. If both men and women are adults and single, there is no dispute that two people fall in love voluntarily. Maybe two people haven't officially got the license, but it's not illegal for them to stay in the hotel. Although the state does not encourage this kind of premarital cohabitation, there is no provision explicitly prohibiting it. This means that as long as two people meet the above conditions, it is not illegal to open a room in a hotel, and no one will interfere. When both parties check into the hotel, they only need to go through the relevant formalities with their ID cards. Whether unmarried men and women who do not meet the requirements illegally stay in the hotel depends on the actual situation. If one or both of the men and women staying in the hotel are married, it is an affair. In the Xinmin law, long-term cohabitation with the opposite sex in the name of husband and wife outside marriage may also lead to bigamy. This also means that if the relationship between two people lasts for a long time, it may involve bigamy, which is of course illegal.

Legal basis: Article 362 of the Criminal Law of People's Republic of China (PRC). Personnel of hotels, catering services, cultural entertainment, taxis and other units who tipped off criminals when the public security organs investigated and dealt with prostitution and whoring activities shall be convicted and punished in accordance with the provisions of Article 310 of this Law.