Maybe their minds didn't catch up to their devil fruits' nature?
- Whitebeard was a good person, which is an ultimate opposite to his devil's fruits' destroying tendencies.
- Dragons were perceived as deities with unmatched wisdom and intellect. Kaido is anything but wise and intellectual.
- Don't know about Big Mom, honestly.
On the other side:
- Leopards are predators and ultimate killers. Lucci is perfect for this fruit.
- Kaku loves giraffes, so his awakening was inevitable.
- Same with Katakuri. His love for sweets (donuts in particular) is perfect for mochi fruit.
- Doflamingo's fruit is perfect for a manipulative broker.
- Should I really say anything about Luffy, lol.
It's a bit hard to think about Law and Kidd, though. So maybe I ain't right
- Whitebeard was a good person, which is an ultimate opposite to his devil's fruits' destroying tendencies.
- Dragons were perceived as deities with unmatched wisdom and intellect. Kaido is anything but wise and intellectual.
- Don't know about Big Mom, honestly.
On the other side:
- Leopards are predators and ultimate killers. Lucci is perfect for this fruit.
- Kaku loves giraffes, so his awakening was inevitable.
- Same with Katakuri. His love for sweets (donuts in particular) is perfect for mochi fruit.
- Doflamingo's fruit is perfect for a manipulative broker.
- Should I really say anything about Luffy, lol.
It's a bit hard to think about Law and Kidd, though. So maybe I ain't right
Kidd's love for inventions/robots, got a power for that theme