I think forcing a child, to not do something they want to, just so they look better in society is wrong. I agree it's also counterproductive. Tell the person who told you this, "What if someone said you couldn't do something you enjoy? You think because my child isn't like you, they don't have feelings?"
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"Sprinkle, sprinkle, little bar, what I wonder is a cat" - Cheese from Foster's Home for Imaginary Friends