its not totally meaningless. the way a person dressed impacts the way he views himself, so if a person wants to identify with a certain group, he should dress like them. if a person dresses in a tshirt and shorts he’ll feel more chill and relaxed vs if he dresses in a suit and tie. thats just the metzius. and nobodies gonna say that a white shirt itself holds any grand chashivus, its just what took off and became the “dress code”. it couldve been a blue shirt or a green shirt, doesnt matter. the point is if a person wants to identify with the yeshiva world then he should dress as such
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