Lesson 7 — Real use cases vs the marketing: closing the structural-literacy gap

**Use cases where stablecoins genuinely deliver.** Cross-border remittance in corridors where both endpoints have functioning ramp infrastructure (covered in Lesson 4) — the savings versus traditional rails are large enough that the savings compound across years of recurring sends. B2B settlement for crypto-native operations — removing correspondent banking and FX friction, particularly across time zones. Payroll for workers in unstable-currency jurisdictions — preserving purchasing power against double-digit annual inflation. DeFi as the underlying settlement and accounting layer — every major DeFi protocol denominates positions and yields in stablecoins, and the entire ecosystem depends on their existence. On/off-ramping holding-period value during volatility — moving from a volatile crypto position to a stablecoin position rather than to fiat retains crypto-native optionality at the cost of stablecoin-specific risks.

**Use cases where the marketing exceeds the substance.** Domestic consumer payments in developed economies with modern instant-payment rails — UPI in India, Pix in Brazil, SEPA Instant in the EU, Faster Payments in the UK each provide near-zero-cost domestic settlement that stablecoin payments cannot match once on/off-ramp costs are included. 'Banking the unbanked' as marketed by some payment-stablecoin projects — the structural problem of unbanked populations is usually KYC, identity, and trust infrastructure, not transmission technology; stablecoins don't address the binding constraint. Tokenized real-world-asset stablecoins as 'higher-yield' alternatives — these mostly add layers of opacity and counterparty risk on top of the simpler designs without delivering enough yield to compensate. Yield-bearing stablecoins generally — the yield comes from somewhere (usually undisclosed lending or rehypothecation), and 'somewhere' is exactly the kind of opacity that stablecoin design is supposed to remove.

**Diagnostic questions to ask of any stablecoin claim.** First: which structural family is this? (Fiat-backed, crypto-collateralized, algorithmic, or partially-collateralized — the family is the failure mode.) Second: what is the redemption mechanism, and who can use it? (Direct issuer redemption with $100K+ minimums is structurally different from 'redemption via secondary market' which is just 'sell to someone else.') Third: what is the regulatory status of the issuer? (Authorized under MiCA, NYDFS Trust, MAS, FCA — or unregistered? Unregistered is not categorically illegitimate but is a meaningful additional risk.) Fourth: what does the reserve composition look like, in enough detail to assess asset-quality risk? Fifth: if this is a payments use case, what specifically does stablecoin substitution improve over the existing fiat rail, accounting for both on-ramp and off-ramp costs?

**Marketing patterns that should trigger heightened scrutiny.** 'Algorithmic stability' for any design without external collateral. 'Fully reserved' without third-party attestation or audit. 'Higher yield than competitors' for any fiat-backed design, where the yield is unexplained. 'Decentralized' for any design that retains issuer-level mint, freeze, or upgrade powers. 'Bank-grade compliance' for an issuer with no actual bank charter or equivalent regulatory authorization. None of these patterns are necessarily disqualifying on their own — but each is a signal to ask the structural questions before any allocation decision.

**The trajectory.** Stablecoin issuance has grown from approximately $5 billion in early 2020 to over $200 billion by mid-2026, with USDT and USDC accounting for the substantial majority. Regulatory frameworks have matured from speculative discussion to enforced regimes in major jurisdictions. The pool of issuers operating under formal authorization is small but growing. The next phase, visible in current legislation and regulator commentary, is the convergence of the major frameworks on a common set of requirements — reserve composition, redemption rights, prudential oversight — that will likely result in further consolidation of the legitimate-issuer category and further pressure on issuers operating outside it. Holders who have built structural literacy now will navigate that consolidation; those holding stablecoins via the design's marketing claims rather than mechanisms will be exposed to whichever shoes drop in which order.

**Course closing.** The structural questions are the entire toolkit. Family → failure mode → redemption mechanism → regulatory status → reserve composition → use-case fit. Applied to any stablecoin, current or future, those six questions yield a defensible position. Marketing language changes; the mechanisms don't. The patterns we have seen — Terra's death spiral, USDC's SVB weekend, the bridge-wrapper exploits — repeat structurally even when the surface details rebrand. The defence is reading mechanisms, not slogans.