Final answer:
The letter to the younger brother explains that the friend is liked because he is kind-hearted, trustworthy, and has a great sense of humor. These qualities contribute to the friend being a notable and enjoyable companion.
Step-by-step explanation:
Dear Younger Brother,
I hope this letter finds you well. Today, I want to share with you the reasons why I like my friend, and hopefully, it inspires you to notice and cherish these qualities in your friendships as well.
The first reason is that my friend is kind-hearted. He's always there to lend a helping hand to anyone in need, and his compassion does not go unnoticed. Second, he is trustworthy. I can always rely on him to keep a secret, and he's never broken a promise to me. Finally, what makes him truly special is his great sense of humor. No matter the circumstances, he knows how to bring a smile to people's faces, making every moment spent with him enjoyable.
I believe these traits make my friend remarkable and standing by his side has been a privilege. As you grow up, I hope you'll find a friend just as outstanding!
Take care and remember to always be the good friend that you are capable of being.
Warm regards,
Your Older Sibling