不知道是男娃女娃, 问了一下娃, 她的回答是:

She will not wear it even on weekends too, because it's not her type of clothes. Her understanding of this sentence is "don't be too perfect or too good or too unique."  She thinks it's a little bit mean. 

不好意思, 可能太直率了, 请原谅。 只是想告诉你teenagers 的想法, 和我们不太一样。:)