Yuta Okkotsu from Jujutsu Kaisen is generally kind-hearted and powerful, but he does make mistakes or questionable choices throughout the story. Here are a few of the main ones:

1. Relying too much on Rika early on. When Yuta first joined Jujutsu High, he depended completely on Rika's cursed power to win fights. He had little control over her, which caused unintended harm and danger to others.

2. Lack of confidence and hesitation. At the beginning of Jujutsu Kaisen 0, Yuta constantly doubts himself and hesitates to act even when people are in danger. This often forces others to deal with the consequences.

3. The moral issue of binding Rika's soul. Even though he didn't mean to, Yuta accidentally kept Rika's soul bound to the living world as a curse. That's a serious moral mistake, since it trapped her spirit instead of letting her rest in peace.

4. His ruthlessness in battle. Later in the manga, Yuta becomes very efficient even cold when dealing with enemies. Some people criticize him for being too pragmatic, as he eliminates opponents without hesitation.

5. Keeping secrets and manipulating situations. During the Culling Game arc, Yuta withholds information and acts strategically for his own goals. While it's clever, it can also be seen as dishonest toward his allies.