<s>[INST] Once there was a boy, who dreamed of being a singer. He had a unique voice, crystal clear and strong, but he could never sing in front of anyone except his family. When he was 12 years old, his grandmother died. Since his grandmother was the only one who encouraged him to sing in front of people, her death left him hesitant to share his voice with others.

Fifteen years later, the boy is now a man. He is working as a data analyst, feeling unfulfilled and disenchanted with his job. His life has become stale and mundane, and he finds himself wondering what could have been, often lost in thoughts of his childhood dreams. There is still a yearning to sing in his heart, but the fear of rejection and being judged, left unchecked, has grown into a huge mountain.

One day, while browsing online, he stumbles upon a video of his childhood favorite artist, giving a concert. He watches in awe, remembering the countless hours he spent listening to the artist's songs, imagining himself on stage, singing in front of thousands. A spark within him reignites, and he starts humming the tune, feeling an overwhelming urge to sing. However, the sound of his voice, even to his own ears, now seems foreign and awkward, a stark contrast to the confidence he once had as a child.

Question: Why does the man not feel like singing in front of people anymore?[/INST]