jetfighter ,
The problem is that everyone thinks that a chess game starts with the opening.That is far from true.Before the opening is understanding.
To understand the opening you have to understand it's product the middlegame and to understand middlegame you have to understand it's product also , the endgame.That is why everything starts from the endgame.
After the endgame the important is to learn to do "safe moves".This is not exactly tactics as many think.You have to learn to do a safety check with every move you choose and be sure that doesn't hang a piece.Tactics are the 2 or 3 moves combinations(for start)that lead to loss of material(or checkmate) through a series of forced moves.It is obvious that if you can't keep the material balance , no strategy can help you.
Once you are ready to keep the material balance, knowing where to put your pieces and how to make a plan or how to exploit or create a weakness becomes very important.
Without all the above , knowing every opening perfectly can't help you.Botvinnik is perhaps the best teacher ever appeared.All those self called teachers or coaches would "kill" to be his students if he was alive and frankly, none of them would even qualify for it.
If Botvinnik says that for beginners opening is useless we have to take that under serious consideration.
I respect anyone that teaches for 35 years but I don't believe that he necessarily does his job right.A doctor in my village was a doctor for 45 years and he did many things wrong.If you have learned some things wrong that sometimes doesn't change with the years.It is even getting worst.Because you take a student , that student improves , sometimes fast.Yes , but he could improve faster with a correct method and no one knows if that student ultimately will hit a wall in his improvement because of the terrible gaps he left in his chess education(something that wouldn't have happened if he followed the correct method).
Today you see players that reach 2000 , even 2200 and they still don't know what minority attack is.A, considered, great book and best seller("Reassess your chess")written by one of the , considered, best teachers right now in USA(Sillman) devotes no chapter at all on minority attack in a 600-page book that claims that teaches people how to exploit imbalances!!!!
We live in the era of easy solutions.The one that offers them is the one that gets the money(either from books or from "teaching").He is the THE teacher.Does any of these guys gave any exams to be a teacher?Most of them(if not all) should still be students.
Believe me , if your middlegame and endgame knowledge is good you will have no problems with openings.Openings should only bother you as for the middle-game they produce.Try to understand that and you will easily catch up with openings once you improve.
So we know beginers need Tactics, and Endgames, but what about some sort of Stratagy, the most a beginer should know about the opening are the principles, and maybe 5 moves of a few crittical openings(plus a few traps so long as they don't intend to use them) control the center, develop rapidly, and get the king to the safest place possible, even if its e1.
1. develop your pieces towards the center
2. castle
3. look for tactics, checks and threats
4. voila, you're at least 1500 now