The government can't exclude people who don't pay for the lighthouse from using it. It's all or nothing - hence not excludible. A subway can exclude anyone who

The government can't exclude people who don't pay for the lighthouse from using it. It's all or nothing - hence not excludible. A subway can exclude anyone who doesn't pay while including anyone who does. To take the example of several subways I've been on recently (NYC, Delhi, Amsterdam, Boston), if you don't pay the turnstile won't let you through. If you scroll up, you'll find me explicitly agreeing that roads are a private good which should be paid for via user fees (either gas or odometer taxes), and those who refuse to pay should be excluded.