Unpredictability: Weather, lighting, subject behavior, and technical issues can derail shoots.
Ethical Complexities: Requires strict adherence to consent, privacy laws, and dignity of subjects.
Technical Barriers: Demands expertise in cinematography, audio, lighting, and editing software.
Limited Creative Control: Cannot manipulate reality to fit a perfect narrative vision like animation/CGI.
Inherent Bias: The filmmaker's perspective, editing choices, and subject selection inevitably shape the narrative.
The decision to use real video should weigh these factors against project goals, budget, timeline, and ethical obligations. It offers unparalleled truthfulness but demands significant resources and responsibility.