BSM1
What? Me worry?
I can play a guitar, as well as several other instruments. One thing with practice that might help with switching chords or notes, is to play to a beat, like a metronome. Have a slower beat at first, but try to hit the new chord on the beats. That trains the body to focus on the sound, and less focused on the shape of the fingers. It's like dancing. At first you have to understand where the feet go, but if all you do is focus on the feet, and not the rest of the whole body, you'll never actually be dancing.
Once you become relaxed with making the changes without focusing on them, then increase the rate. Start with 1/4 notes, increase to 8ths, triplets, 16th's, etc. Becoming relaxed is the key. This applies to any instrument you play.
Are you going to practice scales as well?
One thing that helped me believe it or not, was practicing in a mirror just to watch my fingering. I, also, encourage him to learn the scales.