Answer:
Throughout the story, the characters experience problems, triumphs, failures, and more. A lot of character development can come from these events. For example, conflict. As in real life, characters have the opportunity to grow and learn from their mistakes. Conflict can also allow characters to gain a new perspective, which can allow important, and climatic decisions to be made. It can show, or allow the character to find their strengths, weaknesses, motivations, and intentions. It also allows the character to continue through the story. It can be a point where the character decides something has to change which can make a story exciting and creates a plot. Conflict can also reveal deeper parts of the story of the character, it can also be defining for a character.
There are 5 crucial parts for creating an effective plot and conflict can really help with these (exposition, rising action, climax, falling action, and resolution)
*hope this helps! adjustment might be needed*