Maybe because sanji has the tendency to sacrifice himself because he doesn't believe on his own worth. Like his first reaction in order to save someone is to be a shield, unlike luffy believing he can win.
yeah. The key of conquerors haki is in the simplest term- confidence. knowing how strong you are and believing that you are strong enough. conqueror's haki users are ambitious in the way that they want to reach a certain peak themselves.
for sanji however, he has self esteem issues. it was there as a background thought in the past but became a more cleared out topic in whole cake island arc. If you look back on how he was the mvp of many arcs finding out stuffs and pulling cool shits off you'll notice many of his actions are risky, as if in this plan of his there was no concern of whether he will return alive and victorious or not. dude's self destructive in a way that he doesn't care about himself, which is opposite of zoro's way of being self destructive as in he will get what he wants no matter what and will not let this break him. So it makes sense for sanji to face that trait of him now (i personally really like how the arcs are giving more depth to sanji as a character). idk if my explanation made any sense tho..
hoyl shit english is nor my first language i just found out what flippant means and bruhhh ╥﹏╥ yo my brother in buddha cousin in christ bruh no its cz of his self esteem issuessssssss ╥﹏╥ maibad for not checking your comment right
LMAOOO. true enough... the textbook meaning of flippant would be something along the line of being insolent, brazen, and no ethics....
but casually -in this case, my meaning of being flippant was that he was too frivolous, haphazard, and reckless... shallow, if you will
I don't know... I mean people with conqueror haki seems to be either has the trait of unyielding ego, steadfast inner self, really strong self-faith, and ferocious-tenacious side