The versatility of a guitar or ukulele
The guitar is a very versatile instrument. There are many styles of music and many different techniques to learn and practice. As a beginner you start playing simple melodies with your thumb. Eventually you start to play with a pick, to strum chords, and even learn classical and other finger style techniques, where you involve all of your right hand fingers. Listen to different styles of music and learn to recognize what kind of playing the guitarist is doing.