E4, D4 or C4?

I can see how a player starting out might gravitate to the Four Knights or Quiet Game if they're trying to learn the game entirely on their own, although to be honest, if beginners are anything like when I was young, they're probably spending too much time trying to learn too many openings rather than not enough. 
I think beginners should definitely start with gambits, like the King's Gambit, Scotch Gambit, and Evan's Gambit, as such openings require the beginner to focus upon development and tactics, with the King's Gambit in particular forcing them to always be aware of what nastiness your opponent can do to you in return! I guess I sort of recommend trial by fire .

Then, as their tactical awareness sharpens, and it doesn't have to be master level sharp, say around 1000 Elo, and they've picked up a few lines from the above that they can bring out if in a particularly violent mood, they should start to consider some more solid openings in order to work on positional ideas. Tactics arise from good positions, but if you can't see the opportunity then the idea of the position is for naught. 
Of course, at your level, you're well beyond the point where you need to learn to spot basic tactics, like recognizing "Hey, I can leave that pawn undefended because if they take it with their rook, I can move my bishop to capture the rook because that reveals a check on their King that the rook can't do anything about." Most beginners aren't even close to spotting discovered attacks, let alone how the threat of one enables them to leave something en pris. They still need to recognize that they don't have to move a piece just because it is attacked but they can look to see if they can attack a piece of greater value, particularly the opponent's King, pin the attacking piece, or use another piece to capture it, or even consider sacrificing it if there's a big attack in return.
But probably the best thing a beginner can do is find at least one buddy that they can play real, OTB chess with. There's nothing like having a friend sitting across the board from you to really spark the desire to improve.

Flexibility doesn’t help a Beginner.

It hurts a Beginner.
Beginners need lines which are Rigid.

Flexibility helps Strong players.

This is what I was taught.

Can you give an example of how a Flexible line helps a Beginner?
I am willing to learn a different perspective.

I just can’t see how what your saying is right.

We are talking about 1.c4.

Your saying a person should play 1.c4 instead of 1.d4 or 1.e4 because it is more Flexible which is true.

1.c4 is more flexible because it allows players to transition from English lines to 1.e4 lines or 1.d4 lines.

I can see how doing those things from a Strong Players Perspective is very beneficial.

I said I don’t think it is beneficial for a Beginner, but your saying it can be. 
Thus, my question is how is it beneficial?

The Opening Knowledge an individual player would need to have would be greater in a 1.c4 line because they would have to be familiar with 1.e4 & 1.d4 lines in addition to 1.c4 lines.

Would they not?

I have the following classification’s:

- Above 2200 = Master Player of some sort (Titled Player)

- 2100 = Expert Player

- 2000 = Seasoned Advanced Player

- 1900 to 1800 = Advanced Player

- 1700 = Seasoned Intermediate Player

- 1600 to 1400 = Intermediate Player

- 1300 = Seasoned Beginner Player

- 1200 to 1000 = Beginner Player

- Below 1000 = Novice Player

———————

I like to make a distinction between a Season Players vs. Non-Season Player.

To me if Chess was a video game, A Player ranked 1300, 1700, 2000, & Titled would be different Boss Stages.

1300 is a Beginner, but like the Boss or King of Beginners.

1300 is the type of Beginner setting the tone for all other beginners. 
A Season Beginner is coming at other Beginners hot and heavy.

They are playing lines such as Fried Liver Attack or Gambit lines. 
The Season Beginner believes they are Tal doing an Attacking Master Piece.

The EGO they have is also massive.

After the game is over, they tell their other low level Beginner friend “that is how the game is win, boys”. Than they insist on going to the forums and posting their absurd game while having the ego to claim it is a work of art.

Every single time it is like that

Not really.

I think it is an observation which I have noticed.

Novices are best seasoned with salt and herbs and rubbed with butter.

e4

The list compiled was made by me.

I didn’t copy the above list from any other person.

I do find it surprising that you say you have seen it before.

In addition, A person who took up chess yesterday wouldn’t be called a Beginner.

They would be considered Novice or a Provincial Player.

Their status would be undefined.
(To be determined by larger amount of games)

A Novice Player could potentially jump from Novice to Intermediate depending on how talented they are and how fast they pick up the game.

It is possible for a Chess player to never be called a Beginner.

A Chess Player with Natural Talent could excel past beginner ranks right into Intermediate.

The above is very common with Children more so vs. Adults.

Similar things also happen in Schools.
Some kids go to 4th grade.
Other kids are so advanced they skip 4th grade and go into 5th grade.

My definition of a titled player is a player with a title. Some titles are worth more than others, but all of them are worth more than no title.

Don't forget to consider 1) Nf3.
Its very solid.
If you decide to play it - you don't have to get 'bamboozled' into the so-called 'Reti' opening - which 1) Nf3 is often misguidedly called.
Its a Reti if the game continues after Nf3 with d5 and white 'Robotically' answers d5 with c4.
Which is unnecessary.
d4 on move 2 is completely playable instead. So is 2) e3. And other moves.
Is 1) Nf3 'hard to play'?
Your knight prevents e5 by black. It prepares castling. It develops a piece.
Your knight would almost always be going to f3 anyway - and soon.
The thing I like the most about 1) Nf3 is that its taking your opponent out of 90% or more of his 'book'.
Nf3 is so good - that black might do it too. Nf6.
Asking his opponent: "Okay I agree that knights are good. But now what? What do you want to do? No Reti? How about you play d4 Now ?"
I have long thought that d4 is objectively the best and most central move for white to begin a game with. But it collides with a lot of black's preparation. So does e4.
Nf3 - not as much. Not nearly.

The best e4 italian