But of course, it is okay to use the "capo" if the song your trying to play or accompany calls for the "capo" to be placed in one place - like the song "Auld Lang Syne" that I played last Jan. 1. The "capo" was placed on Fret No. 2 as suggested by Instructor L. McCormick throughout the whole song! But if the song calls for different frets to be used (assuming that will be the case) the "capo" is not useable! Just imagine placing and replacing the "capo" all the time.
Also using the "capo" eliminates the tedious practice of trying the barre the chords on the entire fret, which to me is very difficult because of my index problem! However, I understand that doing the barre chord is a must!
Just my idea worth a penny, ha, ha, ha!!!