It really depends on the technique we want to use to play the instrument. If the goal is to play with a plectrum, the best guitar is one with metal strings. If, on the other hand, we aim for a finger style technique, whether it is classical or modern, the ideal guitar to start with is a nylon string, if we want to develop a strong technique for the left hand, otherwise a metal string will help develop a picking technique rhythmically precise with the right hand. However, to become a proficient acoustic guitarist, a good approach is to start with a nylon string and then move on to a metal string.