Why does Marriott Hotel have to wait for three months to join the company?

It depends on the probation period stipulated in the labor contract between the two parties.

If the term of the labor contract is less than 3 months according to law, the probation period shall not be agreed; If it is less than one year, the probation period shall not exceed 1 month; Less than three years, not more than 2 months; More than three years, not more than six months. The probation period agreed by both parties only needs not to violate the law.