Here's why the assumption is made:
* Her accent: Jenny O'Hara adopts a thick brogue for the role, but it's not specifically identified as either Scottish or Irish.
* The era: The film takes place in the 1980s, during a time when stereotypical depictions of Irish and Scottish people were more common in Hollywood.
* The role itself: Sarah is depicted as a working-class character, which can reinforce stereotypes about certain nationalities.
It's important to remember that:
* Accents are complex: There are many regional variations within Scotland and Ireland, and her accent doesn't necessarily align with any specific one.
* Stereotypes are harmful: Attributing Sarah's nationality based solely on her accent contributes to the perpetuation of harmful stereotypes.
In conclusion, while Sarah's accent might lead some to assume a Scottish or Irish background, there's no actual evidence to support it. It's better to appreciate her performance for its humor and individuality, rather than making assumptions based on nationality.