Consider whether it’s reasonable for the employer to ask you to wear a tie. The employer’s dress code could be discriminatory on the grounds of gender if the dress code for men and women is not the same. Specifically, is the requirement to wear a collar and tie, necessary for you and your female colleagues to achieve the same level of smartness?
Rarely, there may also be health and safety reasons which make the compulsory wearing of ties undesirable. This might be on the grounds of hygiene if preparing food, or to avoid the risk of strangulation if using machinery.
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