its actually baffling to me that sanji getting coc was ever even a debate for some people. Sanji was 8 standing up to his father after being trapped and brutalised for months just so he could achieve his dream how tf was that not a kingly quality???? it was obvious from the start
Sanji is so thematically tied to the sea that he has never even lived on land; Germa is a seafaring kingdom, the Orbit was a ship, the Baratie is an ocean-going restaurant and of course the Merry & the Sunny are ships... he and the sea belong together