Yes this is what "tacit" means. Just like you tacitly agree you won't murder people or we'll put you in jail. You don't get an option to opt out. Its called society. On the upside you get protection from others murdering you. The alternative as Locke put it is "nasty, brutish, and short". Are we really litigating this again? I thought we worked out the philosophy on this a solid 250 years ago.