A $7 million life does not require $7 million sitting in a checking account. That number can describe the total value of everything a household earns, spends, owns, and uses over decades, rather than a pile of cash waiting for retirement.
That changes the picture considerably. A household could generate several million dollars in income over a working lifetime, pay taxes, buy a home, raise children, travel, replace cars, save for retirement, and still reach later life without anything close to $7 million in liquid assets.