You still owe any debts after 7 years (up to 15 years in some states). Zombie debt is not "completely clear". But ok, read "mess up your credit score for 7 years" instead. Then point remains: Marginal high-risk credit underwriting is not only dangerous to the institution, but also to the receivers of the loans (and the economy in general). It is socially perverse to hook lower-income people to consumer credit. To have middle-income people lose their house.

Ten years. Maybe. If there are no errors on your credit report.