Asking whether it is scripted is too simple. The answer lies in how it is made.
People ask whether reality shows are scripted, but there is a wide space between the two answers. Without writing any lines, deciding who shares a space and what task they are given already narrows the range of what can happen. Designing the situation is itself an act of making a story.
Dozens of hours from several cameras over several days become one hour. What is kept and what is cut decides how a person comes across. Quiet stretches never reach the screen, and only the minutes where feeling showed survive, which makes everything look more dramatic than it was.
The same footage reads differently depending on order and placement. Laying an interview answer over another scene, changing the chronology, or adding music can make the same action mean something else.
Once you know you are being filmed, behaving exactly as usual is difficult. Even after the novelty fades, camera-aware choices mix in. This is less a deception than the ordinary response of people who know they are being observed.
What remains is that it is not wholly invented. Within a designed situation, the actual reactions are not fully predictable even to the people making it. It is better for viewers and participants alike, though, not to assume what appears on screen is the whole of anyone.
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