Several children were fighting on the roof of the 30th floor. Why can the roof go in and out at will?

On the roof of a high-rise building in Anfengdong New Town, Xi 'an, Shaanxi, there are several children chasing and fighting upstairs. Ms. Wang, who lives in the opposite building, found this situation, fearing that her voice would scare the children on the edge of the roof, and only after watching the children leave the edge did she loudly ask them to leave. And send this video to the group of major friends, and remind everyone to be optimistic about their children. After the reporter's investigation, it was found that the roof of this community was free to enter, and the property personnel did not carry out effective protection and measures. In Ms. Wang's video, we can see several children sitting on the edge of the top floor opposite the 28th floor, chasing up and down from time to time, and there are no protective measures on the edge of the top floor. Look at these children, that is, preschool children or children who have just entered primary school, which makes netizens feel extremely worried. I can't imagine what would happen if Ms. Wang on the other side didn't see all this and told the children to leave in a safe place. According to a survey by a friend of the reporter, the roofs of four of the eight buildings in the community can enter and exit at will, but at the top edge of these buildings, the property staff did not find any warning signs and effective protective measures. According to China's Tort Liability Law, for high-risk areas, if warning signs and effective protective measures are not set in the management area, the resulting risks will be borne. After the incident, the property personnel of the community took effective protection measures for the roof passage. Of course, although the property has taken effective protection measures, parents should not take it lightly. Remind parents who are easy to be careless again that they must put their children's safety first, shoulder the responsibility of supervising their children, and always warn their children not to play in dangerous places. Only by cultivating children's safety awareness from an early age can accidents be effectively prevented.