Your story took me back to when my sons were young. My oldest, who is now 18, had a lovey - a koala bear. He named him Koala Bear - ha ha! He slept with Koala every night, and when we traveled, whether by car or plane, we had to take Koala Bear and train blankie with us if we were spending the night. Same thing with my younger son and Purple Rabbit and Pikachu and Pooh Bear blankie. (Why couldn't they give their lovies nicknames?!)
Anyway, when my son was in 7th grade, and he was going to go to sleep away camp in the summer for the first time, he asked me about Koala Bear going with him to camp. I told him that he could take Koala, but he might get awfully dirty. How did he feel about that? He acknowledged that the other kids might not understand. I told him that if he wanted to leave him with me, I would take good care of him for a week. He thought about it for a while, then he asked me what to do about Koala Bear and college. I told him that I was sure that if he brought his lovey to college, his roommate would too, and it would be fine. He accepted that answer, and left Koala with me for stay-away camp from then on.
I'm not sure exactly when Koala stopped being in his arms - probably 8th grade. Since then, he has given away many of his stuffed animals, but certainly not Koala. Koala stayed on his bed for a good while because I always put him on the bed when I made it. (I don't make his bed anymore, so there's no telling what ends up on the bed as a rule!) However, Koala is still in his room, and though I highly doubt that he will take Koala this fall to his new college dorm room, I'll take good care of Koala while he's away, like always.
I don't know if you can use this somehow to make your daughter feel better - she's a lot younger than my son was when he was worried about leaving his lovey. But know that you aren't alone in appreciating something that your child can have so much love for!
Dawn