Product design question
Design a banking application for kids.
- Stripe
- Product design
- Easy
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What this question tests
Tests product design for a dual-user product (child plus parent) with genuine financial-literacy value and safety constraints, not just a themed adult app.
How to approach it
- Clarify the two users: the child learning money habits and the parent who needs oversight, since this is fundamentally a two-sided product.
- Identify the core pain points: kids have no safe way to earn, save, and spend independently, and parents lack visibility without manual cash handling.
- Design the child experience: a debit card tied to chore or allowance earnings, with a visual savings goal for a real item to teach delayed gratification.
- Design the parent experience: a companion app to set spending limits, restrict merchant categories, and view transactions in real time, without micromanaging every purchase.
- Address safety and compliance: strict spending caps, no credit exposure, and KYC handled through the parent's verified identity, since minors cannot open accounts alone.
- Define success as weekly child engagement (goal progress, chores) and parent renewal, since parents are the paying decision-maker.
What a strong answer includes
- Explicitly designs for two distinct users with different needs, rather than one interface trying to serve both.
- Uses a concrete teaching mechanic, a savings goal tied to a real item, to make financial literacy tangible.
- Addresses the compliance reality that minors need a parent's verified identity behind the account, similar to how Greenlight operates.
- Picks metrics for both sides, since the parent pays and the child is the primary user, and both must engage for the product to succeed.
Common mistakes
- Designing a simplified adult banking app with cartoon graphics instead of rethinking the experience around teaching money habits.
- Ignoring parental controls and oversight, which is the actual reason parents would adopt this product.
- No mention of the regulatory reality that minors cannot independently hold financial accounts.
Likely follow-up questions
- How would you price this given parents are the paying customer but kids are the primary user?
- How would you handle a dispute between a child and parent over a spending restriction?
- How would the experience change for a teenager versus a young child?
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Learn the skill behind it
Chapters of the AI PM course that teach what this question tests.
- Chapter 4: Discovery and strategy for AI products
- Chapter 7: AI UX and human oversight: design for a system that is wrong sometimes
- Chapter 14: Get the job: the AI PM interview loop