The Coinbase app works great in developed countries with clear-ish rules. But the U.S. for instance is only 4% of global population. To get to 1b+ people benefiting from the open financial system, self custody is the only way. Lower friction onboarding, available globally, scales like software rather than a separate regulated entity + local team per country. Then AI agents also need a wallet, and self custody is the better format for that also. Even in developed countries, self-custody is very important for economic freedom.(Brian Armstrong)