When you turn 18, the first thing you want to do is either legally buy alcohol from a bottle shop or head to the pub for your first legal drink.
But imagine getting all excited for the big day, only to be told that you can't come in because of your hairdo.
Perth teenager Cooper Allin was out with his mum on the night he legally became an adult in Australia and wanted the celebrations to keep going.
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So, he headed to another pub with his mates, but was stopped at the door and told that El Grotto in Scarborough was a mullet-free zone.
Speaking to 7News Perth, the freshly turned 18-year-old said: "I had one drink with my mother and then a couple of friends and I decided to head over to El Grotto.
"[The bouncer] said, 'No mullets allowed.' I was more concerned about my pluggers [thongs/flip flops] but he wasn't too fussed about that."
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Cooper said the incident put a big dampener on the night, adding: "I reckon it's a bit silly. I mean, it's a mullet, heaps of people have mullets. To have one beer and get told, 'No, you can't come in because of your hair' was a bit devastating.
"I wasn't there to have a haircut, I was there to sink frothies."
In Western Australia, it's perfectly legal for venues to have a dress code, meaning Cooper's cries will sadly not result in anything; not even a sorry.
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Sadly, Australian Hotels Association WA says the customer isn't always right when it comes to this situation and everyone has to abide by the different rules of different venues.
Cooper isn't the only person to have faced this type of discrimination.
Jed Gadsby told A Current Affair that he was barred from walking into several Brisbane bars because he was rocking the legendary hairstyle.
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When asked what he thought of the decision to turn him away, the Queenslander certainly didn't mince his words.
"To turn someone away because of their haircut, it's pretty un-Australian I think," he told the Channel 9 programme.
"Just thought it was pretty average, hey. I won't cut off my mullet just to go out and have a drink with my mates."
Featured Image Credit: 7News