If you take the rock 1 course for example, an advanced course, most of the technical stuff is just not explained, teacher says “just remember to move by 3 frets, or just remember it is like that, you don’t need to understand why for now”. And yeah it becomes frustrating to have to look on internet very often when you pay exactly for not having to go somewhere else.

GuitarTricks.com has courses for beginners, intermediate, and advanced players. It is clear if you have never played guitar you can get started right away on this site. They start with the basic explanations of tuning and holding positions and build into various styles of playing and picking. As usual they work on country and blues first as these are often the easiest for a beginning student.
AGE CAN’T HINDER YOU – Working off of muscle memory and visual assistance, ChordBuddy is designed for players of every age. In fact, ChordBuddy is well-suited for those looking to play guitar with arthritis, offering a pain-free method of playing your favorite song. Utilizing ChordBuddy also allows you to learn the guitar on your own, eliminating the need for long guitar lessons with an instructor, which can result in prolonged joint pain.