I play the piano and I must say that I do face difficulties in playing the whole notes.lol.But still,i play it well.Its amazing for someone who has short fingers to be able to play the piano well.So,i think that those with short fingers can also play the guitar.I did try playing the guitar and it really hurt my wrist and fingers.lol. However,practices make perfect=)
Good luck to all.You can do it!=)