Questions & Mysteries Why didn't Zoro train the Robin, Franky, and Usopp to use Haki while they were in Wano?

[park_min young]

Oda fucked up, basic haki is a fodder skill. The 2-year training should have been used for advanced hakis. All fighters in the new world knows basic haki, and they didn’t train for shit. Bonney is a 12-year-old who was running around looking for Kuma for the majority of the timeskip... and even she has mastered the basics.

 

[Monster Zoro's Tesla Supplier]

Unlocking =/= using consistently. You can unlock at any time but it takes years of training to use it properly.

That's only really the case with things like Conq Haki.

 

[sanjikun]

Oda has made it clear you can get up to Mid Tier without Haki. Tobi Roppo were all Haki users and lost to non-Haki users.

Cracking that YC range though will be difficult without Haki. Not impossible, but you need some nightmare Luffy or Enel-type powers imo to really be YC without Haki.