We will start this list with the best instrument ever invented. Ok, I am a bit subjective here, but guitars are cool. They sound great, benefit the coordination of hands and develop a sense of music improvisation. The guitar doesn’t require you to follow the patterns, notes and established guidelines all the time. Going out of the box is even encouraged. If you wonder at which age should your kid start to learn guitar, the answer is “as soon as she/he can hold it and reach the first fret”.