Though she’s never given a reason for her departure (via Good Housekeeping), it isn’t too hard to speculate why Molly Roloff isn’t a big part of Little People Big World.
Unlike her brothers though, Molly has never explicitly given her reasoning for leaving Little People Big World.
She was 12 when Little People Big World started filming, but much like her brothers Jeremy and Jacob, slowly worked her way out of the series as she got older.
The sole daughter of the Roloffs, Molly Roloff was seen on the show quite frequently.