In the end, Li Fan's essence is just like this.
Extremely selfish, never truly trusting others.
Just like when he was a mortal, struggling for survival in the Da Xuan Dynasty. For matters involving his future, even matters of life and death, Li Fan personally attended to everything.
Searching for mineral veins in the deep mountains, leading the firearms team to eliminate bandits. Even saving King Langya amidst the chaos, and eventually taking his life by his own hand. The fundamental reason for all of this was his unwillingness to entrust these matters to others.
He could only take action personally.
Now, a hundred years of reincarnation have passed. Although Li Fan's strength can easily crush a True Immortal, this aspect has never changed.
The continuation of the mortal world pertains to his own life.
Therefore, Li Fan absolutely would not fully entrust it to others.