Can a square or open park restrict people's activities?

Squares and open parks certainly do not restrict people's activities, but only if they are legal and not dangerous, not for profit, and preferably not disturbing the public, they will not be prohibited.

For example, rice-planting songs, square dancing, gymnastics and tai chi.

But the activities of these activities need to be accompanied by music, must pay attention to the volume is not too loud, but also pay attention to the time, do not affect the surrounding residents rest.

Other than that, there should be no restrictions.