Source : trust me bro
Awakening a paramacia is completely different thing from Awakening a mythical Zoan.
Low grade Fruits are easier to awaken. OP fruits are difficult. Look at whitebeard, Bigmom. Neither of them awakened it.
Oh come on, I know the difference of awakening a paramecia or zoan fruit but Katakuri technically has all the requirements to awaken his Dragon DF since he was shaping his whole persona purely to protect his family. He is not like Kaido at all on that part.
Also, Katakuri's fruit isn't low graded, this is one of the strongest paramecia fruits we've seen so far - with logia-like abilities. It's specifically called a "special paramecia", so how is it low graded again? Plus, when Luffy was asking Katakuri if he's awakened, he gave a response as if being awakened is just a side quest lol:
Needless to say, Katakuri might even find ways to shape his dragon mode into a donut lol
Easier answer is he would be too over powered lol.
Even the current one is among top 3 alive (before luffy killing him)
Oda can easily give other top tiers awakening as well.
I mean, even Big Mom didn't have it and her feats are abysmal compared to Kaido.
Literally Rayleigh, Zoro have it lol.
And stronger version at that.
Marco, Shiryu, King, Benn > Katakuri.
So much of skill and CoC, yet the weakest YC1 in history.
One is the Dark King, another one is the future WSS lol. Yeah, what an L...
Rayleigh? Yes. Zoro? How? Katakuri was destroying his surroundings by merely unleashing his fodder control CoC. Do you think his CoC is weak?
Honestly, I would say only Shiryu and Benn are stronger than Katakuri. All Oda has to do is drawing a short clash between Katakuri and a top tier and people would put Kuri at low top tier (AT LEAST) without doubts considering his resumee. Who's questioning the dude to hold his own against top tiers with his amount of skills? FS, awakening, CoC, super hardening, Snake Man levels of speed - now Katakuri needs better feats and this guy would make Ling and Larco look like coughing babies.