A music student is at a distinct disadvantage if learning to read music is delayed. All music knowledge and technique comes from learning how to read music notation. It gives the student the ability to play the songs he/she would like to play.
Phil Hartshorn is a great guitar teacher. He's friendly, funny and encouraging!!!
He is also very good at making people understand the situation. So don't worry about thinking that your kid comes home and tells you "I don't know what Phil was talking about". Because that won't happen.
If you are considering taking lessons with Phil but are not sure yet, can I say give it a go, no matter which method you use. After starting with face to face lessons, I was surprised how efficient the internet based lessons are and the ability to log in from anywhere you have a connection and device is great. Phil is a patient and proficient teacher and his methods provide challenge and reward as you master your chosen instrument.
If you are considering taking lessons with Phil but are not sure yet, can I say just do it. Lessons with Phil will help incredibly with your playing. You will notice a huge improvement.