The sentence from the excerpt is the best example of bias is that School dress codes are outdated and superficial.
It should be noted that bias simply means the antagonism towards a particular thing or issue.
From the information given, it was stated that students should be allowed to wear what makes them comfortable and make the learning environment more conducive.
Therefore, the sentence from the excerpt is the best example of bias is that School dress codes are outdated and superficial. This shows discrimination towards school uniform.
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