why
Generally the pawn, though 1 Nf3 is a good move too. The pawns secure squares for the knights and take away squares from the opponent and open diagonals for the bishops and queen.
Examples: 1 e4 Nf6 2 e5 chases the knight. 1 Nf3 d5 stops e4 for white.
"From the outset two moves, 1. e4 or 1. d4, open up lines for the Queen and a Bishop. Therefore, theoretically one of these two moves must be the best, as no other first move accomplishes so much." - Capablanca
i have no idea what do you think
Of course it's better to move our hand first!
How are the pieces going to move if our hands do not move?
But in all fairness, a typical pawn move such as 1. e4 and 1. d4 are probably preferable to a starting knight move.
so when you are birth you only have one hand on you
and when you buy a chess set you buy second hend???
i have no idea what do you think