1, unauthorized entry into private property: gyms are usually private property, and unauthorized entry into other people's private property is an act of infringing on private property and constitutes a crime.

2. Unpaid: Gyms usually need to pay membership fees or admission fees, and using gym facilities without payment or permission is regarded as stealing services and constitutes an illegal act.

3. Violation of contract or regulations: Many gyms have clear membership system and admission regulations. Unauthorized use of gym facilities violates the contract or regulations signed with the gym, and will face civil disputes or be required to bear corresponding economic responsibilities.

4. Damage to the rights and interests of others: Touching the gym will lead to excessive use of gym resources and affect the rights and interests of other legitimate members, which will be considered as an act of infringing on the legitimate rights and interests of others. Generally speaking, it is illegal to touch the gym.