I am not a brave hero, I do not have the time to learn a lot of long forcing lines, I do not want to face a stronger opponent and play against his pet Sicilian Dragon, Marshall attack or poison pawn najdorf. I noticed that the strongest lines against several popular defences are too risky for my taste. With 1.e4 you need to take a risky road to win. It seems that you win in a almost suicidal attack and black has a lot of chances to sharpen the game and make you sweat. I prefer to win by paciently build an strong position and then squeeze le life out of my rival.
Why play 1.e4?
I am a lesser mortal, have to work, like to study endgame theory, like to face strong opponent and say: throw to me your slav or queen indian I am ready for it. Or throw me your sharp benoni or King indian or semislav BUT this time I will choose a positional line that even GM play and It is ME that is going to choose my pet variation.
In other words:
- - You like risk and have time to study and you are brave, choose 1.e4.
- - You are a bit timid, little time to study, choose 1.d4