They DO grow out of a lot of things ... fast!!
I am glad, however, that Toto has retained a couple of "puppy traits" ... she still loves to snuggle, nap on our lap and be near us!
I know she probably isn't "socialized" enough ... she is with people but not with other animals! We don't know any people who have small animals! We met a sweet little Jack Russell female rescue, named Chili, at Petco and Toto hid in her bag and just peeped out at her!
She was the calmest Jack Russell I have ever seen and just a sweetheart!