The child was accidentally hit by a stone bench in the community. Should the community be responsible?

First of all, the community you are talking about will not be the subject of responsibility.

Secondly, if the stools in the residential area meet the specifications and there are no potential safety hazards, the residential property management does not need compensation;

Third, your child belongs to a person with no capacity or limited capacity. At that time, who was in charge and who was responsible.