Imagine Freya finding her siblings and everything goes like in canon, except they are babying her. She entered this family intending to take her role as the eldest, but the Mikaelsons perceive her as their new baby sister – because, tbh, she is mentally the youngest. So they all are a bit overprotective.

"I'm a firstborn!"

"Love, you need at least a century-long experiece for this official position. As you don't have it, just accept things the way they are."