I adore many of Shakespeare’s plays, and as previously stated, I believe a thorough knowledge of the texts is central to a deep appreciation of the plays.
That being said, often the reading of Shakespeare in high school does a disservice. Take something beautiful. Reduce it to a lifeless skeleton. Call it a high school Shakespeare class.
I won’t deign to call high school readings of Shakespeare a textual appoach, for quite frankly high school students have neither the backgound in the history of literature and drama, nor the background in early modern English, nor the background in critical analyis to get much out of the process.
They need an introduction to Shakespeare, which means anything other than dry, nearly foreign texts. They need to have Shakespeare brought to life for them, for they do not yet have the skills to bring the texts to life on their own.
I wonder how much of this is a holdover from the days when AV at high school was more trouble than it was worth. When I went through, vinyl records played through remarkably poor quality one speaker phonographs where the height of AV resources. Thirty or more kids, some protesting too much, all sitting in a room listening to one wheezy old phonograph did not make for a quality learning experience. Teachers who knew little of Shakespeare did not help either.
Similarly, the non-annotated or marginally-annotated texts were not useful. They seldom assisted in setting forth what the basic words meant. They were not even up to Coles Notes, let alone at the level of being able to help one learn the language and crack the text.
About the only benefit to high school Shakespeare readings was that they were cheap (re-useable, inexpensive texts), and easy (no extra effort required to arrange for an AV presentation, or god forbid, actually put on a play).
High school Shakespeare readings were to Shakespeare what high school cafeterias were to fine dining: somewhat nutritious, but for the most part thoroughly depressing.