Trust worked like a series of pass/fail checkpoints, not a running total. People handled real complexity fine. Subway closures, an unfamiliar city, none of it shook them much. What did was the assistant ignoring something they had already told it. One participant asked, more than once, to avoid a particular café and to just be given a location instead. The assistant kept routing her there anyway. Her reliance rating for that session dropped to 3/5, even though she rated the rest of it well. One dropped checkpoint was enough to undo several good exchanges.
“I told you repeatedly that I didn’t want to go to Blanchet Coffee, and I had to also tell you repeatedly that I wanted a location, but you didn’t drop directions.” Hridaya, 26
Age split how people handled privacy, not how comfortable they were with the tech. The 26-year-old wouldn’t hand over her address at all, and navigated by landmark instead. The 72-year-old volunteered his full home address without being asked, and rated the session 5/5 straight through the assistant’s small mistakes. The same prompt, “what’s your address,” landed as a privacy risk for one person and as ordinary helpfulness for the other. Three segments came out of the data:
Confident Delegators: older, high baseline trust, happy to disclose. They want the assistant to just decide well.
Active Verifiers: younger, test and correct everything, protective of their data. They want fast, concrete answers.
Life-Domain Concierges: navigation is almost incidental. They hand the assistant a whole plan, from contractors to classes to travel, and expect it to keep up.
No single privacy default can serve all three.
People handed it a purpose, not a destination. Almost nobody opened with “how do I get to X.” They opened with a goal: a romantic dinner where the wife is vegetarian, a seven-day cruise routed through Venice and Rome, a trip to catch the cherry blossoms at peak bloom. The route came last, and sometimes not at all. A navigation-first design, where you type in an address and get directions back, would miss most of what people actually reached for this tool to do, which was to decide what to do in the first place.
The friction came from the interface, not the city. In one session the assistant misheard a participant’s age four separate times. It invented a café, “The Flatiron Café,” and presented it as a real place. It filled processing delays with rambling. For most people the errand itself was easy. The hard part was the assistant’s own behavior.
“You were just rambling. I would have liked a quick response.” Hridaya, 26