Good enough but not suitable. Some play e4 better, some d4 and c4. I think e4 is mostly memorization.
You may be correct but how much does playing style dictate your preference & how much does what you learned 1st effect your choice also memorization is part of the game .... errr how does the Knight move again?
Memorization to some extend is part of the game. I m willing to risk my play vs memorization. Below 2200, playing style is important. Above it, you can play anything vs <2000.
(If Lucy Liu essayed 1. e4 against me-I'd resign.)