As a free human being you're the only one who can subject yourself to them.

Bitcoin is protected in the United States by the First Amendment. Bitcoin is a ledger; a digital book of accounting. You're using this book of account with permission from the creator who made this an open source project.

If the United States adopts Bitcoin (not just accepts it but actually adopts it) and opens a professional exchange in New York with partners being banks, corporations, and other large entities; the UK and then eventually the rest of the world will do the same. It's like anything else in business, you can't just sit back and watch your competitor making money without attempting to do so yourself.

If the USA just said, "no Bitcion" it would be viewed as a blatant infringement on Constitutional rights regarding the First and Fifth Amendments.