1. Yes, Anne's age helped her stay more optimistic.
2. No. Her words and spirit would have been different, if she was older.
Explanation:
1. The 'Diary of Anne Frank', portrays Anne to be a young energetic and high-spirited girl. As a young person Anne showed optimism during her stay in the annex, as she looked forward to exploring life after the war.
A major way she was able to remain optimistic, was by channeling her thoughts into writing. All negative feelings she had were put into writing and this was a good coping mechanism.
As a young girl, she never lost hope on going back to school after the war.
She made a joke of things so as to lighten the mood of people in the house and she also appreciated presents like her Christmas gifts.
She also became friends with Peter and this cheered her up the more.
2. If Anne were older her words and spirit might not have been the same.
Older people are known to censor their feelings more. This was not the case with Anne who protested her mothers attitude towards her frequently.
She had an interest in sexuality and did not shy away from writing about her relationship with her boyfriends.
She had an interest in exploring life and going back to school. An older person may not have these same expectations.