Will dyed hair get me fired.

Hello (19F) I work in a study center helping teens with subjects like mathematics and physics, I'm thinking of dyeing my bangs pastel pink. I know it might come of a bit childish and that's why I'm concerned my boss will disapprove. Should I restraint from doing it? I'm the youngest employee there and obviously my age or rather how old I appear does hold some weight. I need opinions. Thank you in advance

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