The Maturation of Bilbo Baggins

In the fantasy novel The Hobbit, by J.R. Tolkien there are a lot of obstacles the character Bilbo Baggins has to confront. Throughout the book Bilbo seems to take on different challenges, which allow him to mature faster in a way that the Shire would not allow. In the Shire, Bilbo was just a normal hobbit who minded his own business and was never late for dinner. But after Gandalf and the dwarves came knocking on his door, his whole life seemed to change in an instant and it kept changing in a way that Bilbo had no control over. The farther that Bilbo moved through this journey the more he opened up to the world. At the shire Bilbo could have been considered a child in some ways because, he knew of no evil that existed outside of his world other than stories he had heard. There are many prime examples of how Bilbo was turned from a simpleton into a hero. The whole book seems to be a simple metamorphosis of how someone can change just by going through an adventure with new people and trying new things. From moving on to a new life to having to look death directly in the face, the maturation of Mr. Baggins is definitely pointed out here clearly and should not be overlooked by the reader.
Starting out on a new adventure was different for this hobbit, not only different but foreign. Mr. Baggins starts this tale not even interested in Gandalf's plan. Bilbo does not travel at all, or at least not as much as this journey was calling for. To set out in this journey he was going to have to face an unheard of danger, something he would eventually become accustomed to throughout the novel.

"The next day he had almost forgotten about Gandalf. He did not remember things very well, unless he put them down of his Engagement Tablet: like this: Gandalf Tea Wednesday. Yesterday he had been too flustered too do anything of the kind" Chapter 1, pg.6

In that quote I feel that it shows how Bilbo is still a child in a sort of way. How he cannot remember things by just knowing, he