Board Thread:Naruto Discussions/@comment-30168130-20170522201819/@comment-31099706-20170523075802

Lack of training I suppose? I mean we know that even with talented shinobis with their element affinity they still have to train for it, to use it.

There are cases where Kekkei Genkei were awakened when in a risk of death situation. Lile Haku's and Sasuke's case, their body just unconsciously awakened that Kekkei Genkei without the user's intent to.

And Danzo gave scrolls to Yamato to learn wood release jutsus. This also shows that one also needs training to actually do the jutsu.

I also think good chakra mastery would have also helped.

And weren't there many,many children that died from the Wood release experiments? I don't think Tsunade or Sakura would just bet on Naruto's life for the sake of a hand. So I guess it might as well be fully checked and may have some restrictions here and there. Like @Thekillman. Said, the transplanted Hashi cell users would not prefer being turned into trees, so future Shinibi's could get blasted through them in a fight. So I think it just allows them enhanced life force, stamina,stength and Chakra, and probably some limited Healing.