Why do Irish Americans play bagpipes on St Patricks day parades when bagpipes are Scottish not Irish?

Not trying to be offensive I'm genuinely interested it's always baffled me.
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I'm well on the way to being extradionarily drunk so unless you just want abuse I suggest you read my exchange with Mr Commodore and fuck off happy St Patricks day 🇮🇪🇮🇪🇮🇪
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What a brave little boy name of stars is to leave abusive comments on my question and then block so he can't be replied to 🤣🤣🤣🤣
Why do Irish Americans play bagpipes on St Patricks day parades when bagpipes are Scottish not Irish?
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