+everyone look same
+smart
+practical cos of pockets (if u have blazers)
-Not suitable for weather- can get too hot/ cold
-people can wear it wrong - top button undone, shirt out e.g and then it looks worse
And if its nonuniforme then ppl can show personality, wear stuff suitable for weather however more ppl ma ybe bullied cos of what they wear and some ppl may wear unsuitable stuff