Its not so much the complexity of the instrument, but rather the quality. Most cheap beginner guitars have badly cut nuts, or warped necks or sharp fret edges

Its not so much the complexity of the instrument, but rather the quality. Most cheap beginner guitars have badly cut nuts, or warped necks or sharp fret edges that just make it so much harder for beginners to adapt to the instrument. Finger or hand pain is almost guaranteed. Picking a better made instrument (substitute software dev tool, graphic design platform, cookware etc. here) will just make the process much easier, no matter your skill level.