Product design question

Design a baby sitting product.

Practice this question out loud. An AI interviewer asks it, follows up like a real interviewer would, and scores your answer. Type or speak.

What this question tests

Tests two-sided marketplace design for a high-trust, safety-critical category.

Clarify the model: an on-demand or scheduled babysitter marketplace, similar to Care.com or UrbanSitter, connecting parents and vetted sitters.
Segment on parents needing occasional evening or weekend sitters, the clearest recurring need, versus full-time nanny seekers.
Identify the pain point: trust and safety verification is the top blocker, parents won't book an unknown sitter without background checks and reviews.
Design the core flow: background-checked sitter profiles with reviews, in-app messaging, a booking calendar, and an in-app payment and rating system.
Define success as repeat booking rate with the same sitter and parent-reported trust or safety satisfaction score.

Puts trust and safety verification first, correctly identifying it as the binding constraint for this category.
Prioritizes repeat bookings with the same sitter as the real retention signal, since familiarity matters most to parents.
Grounds the idea in existing real products, Care.com and UrbanSitter, to show market awareness.

Designing generic marketplace features without addressing background checks and safety as the core trust barrier.
Measuring only total bookings instead of repeat-sitter retention, the stronger trust signal.

How would you handle liability if something goes wrong during a sitting session?
How would you verify background checks stay current over time?