I remember coming across Laura's age in a few discussions, but it really depends on which Laura we're talking about. If it's Laura from 'The Incredibles', she's around 8 years old in the first movie and grows up to be a teenager in the sequel. If it's Laura Kinney, aka X-23 from the Marvel comics, she's initially introduced as a young clone of Wolverine, around 11-13 years old, but her age progresses as the story evolves.
For Laura Palmer from 'Twin Peaks', she's 17 at the time of her death, a pivotal point in the series. Then there's Laura from 'Little House on the Prairie', who starts as a young girl and we see her grow up throughout the books and TV show. It's fascinating how age plays such a crucial role in defining these characters' stories and development.