Your below statement Proves my point!
Start with openings played before Howard Staunton won his first game, and then grow the child into the games of Staunton, Anderssen, and Morphy.
Yes, start them off with Howard Staunton, Adolf Anderssen, and Paul Morphy's games!
All 3 chess players predominantly played the Italian Game & Evans Gambit.
I think that what is "proven" in this exchange is that you read selectively. Does your comprehension of the quoted sentence include the meaning of the word BEFORE?
Now, go back and read post#10. All of it. Don't argue with me about the Italian until you understand where we agree and where we disagree.
Mr X,
Please read my first comment in this thread so that you understand the argument. It precedes your first post.
I recomment the Italian, King's Gambit, and Spanish.
If you want something too complex, then teach the KIA or some other quiet positional opening.
Capablanca (Chess Fundamentals) puts basic opening principles third behind endings and tactics. But, his model games are a mix of old lines and those current in his day. Unlike most who post here he is not a dogmatist. Euwe (Development of Chess Style) argues that a player's development should follow chess history. He starts with Greco and Philidor. The King's Gambit is prominent, as is the Italian.
I have a student who learned the Colle from an older relative. He played it against another student of mine in a tournament this weekend. Neither player had the faintest understanding of the position, but the stronger tactician reached a better position before making errors that let the other equalise. They agreed to a draw in an unbalanced position. They tied for first in their section. The student who won first on tiebreaks (the stronger tactician of the two) usually plays either the Italian or the Spanish. The tactician also faced 1.g3 in one of his games this weekend. He outplayed his opponent tactically. Again, neither player demonstrated positional understanding commensurate with the position.
I showed both students other model games in the Colle and then redirected their focus to basic tactics.