Extract the age when Brendon Small began to learn how to play Guitar

Context: Brendon Small is an American actor, stand-up comedian, animator, writer, director, producer, and musician known for co-creating the animated series Home Movies and Metalocalypse. He also writes the music, and is the main performer for the virtual melodic death metal band Dethklok, which began as the subject of Metalocalypse but has taken on a life of its own, with four albums and an occasional live touring band, headed by Small. Small has also released two albums under his own name, in a similar musical style to Dethklok.

Small was born in Illinois in 1975. He moved to California as a child. Small started learning guitar at the age of 14 after a kid in his neighborhood began teaching him about guitar and music. At his first public performance, his hands shook so wildly that he had trouble controlling the guitar. It would be another ten years before he was comfortable performing in public. He graduated from Palma High School in Salinas, California. He graduated from Berklee College of Music in 1997. During his music studies, he took several writing and comedy classes at Emerson College. After graduating, he felt that the rock music genre was fading in popularity, so decided to try his hand at stand-up comedy.

Answer: 14