argument:The following appeared as a letter to the editor from the owner of a skate shop in Central Plaza. "Two years ago the city voted to prohibit skateboarding in Central Plaza. They claimed thatskateboard users were responsible for the litter and vand

First, the admission of skateboarding in the plaza does not necessarily indicate the restoration of its former glory. Perhaps, there are a small part of people who like to see others play skateboard due to its potential dangerous factors, let alone the number of people who prefer to play it by themselves. For that matter,perhaps that even if the city lift its prohibition on skateboarding in the plaza, no much more people will visit the plaza.Besides, no evidences in the letter demonstrate the plaza has been welcomed by the public just because of skateboarding two years ago. So, without explaining these situations which will cause the opposite result ,the author cannot convince me on the recommendation.

Second, the admission of skateboarding in the plaza also does not necessarily indicates the improvement in environment. During the past two years when skateboarding was not allowed,litter and vandalism are still problematic,so perhaps instead of skateboarding users, there are other people who actually should be responsible for the the litter and vandalism. For that matter, the city lift its prohibition on skateboarding in the plaza might not improve the environment there.

Thirdly, the author unfairly assumes that the central plaza and M park under the same conditions, such as they adopt same measures to ensure their surrounding environment and the people who visit M park or plaza have similar environment awareness. Yet, the recommendation contain no evidence to substantiate the assumption, so it is entirely possible that M park use more rigorous ways to deal with the people who against the rules of protecting environment. Thus, no matter how many skateboarding users there, the environment can keep well all along. In contrast, the governances conducted by plaza are loose so that even if there are only a few people playing skateboard,litter and vandalism may not be avoided. In short, it's unfair to compare M park with central plaza.

In sum, the author's recommendation is not persuasive. To bolster it, he must provide better evidences that(1) there are a great number of people who prefer to see or play skateboard in plaza.(2) M park and central plaza use the same measures to protect their environment.