Why can giving someone a choice still influence their decision?

Choice architecture shapes decisions by controlling which alternatives appear, in what order, and with what framing. The chooser still chooses — inside a designed set.

This can be caretaking (“I narrowed it so you don’t drown”). It can be sales. It can be soft control. The pattern is the limited menu; the motive is not proven by the menu alone.

A useful question: What options were never put on the table? Who benefits from the frame of “A or B”?

Intelligent response: expand the set when stakes are real — “Is C available?” — or name the constraint: “If those are the only two, I need time.”