(Breadmaster) Driving licences are for people who are permitted to drive. ID cards are for people who are permitted to . . . . . . (fill in as appropriate). Why should I have to carry an ID card everywhere. After all, I know who I am. Disobeying the law while harming no-one else is a very good way to get the law changed.

[Bm] What do you propose as a means to change the law? In the case of ID cards, what would appear to be a law which is unproven to fulful its primary stated purpose (combatting terrorism) and which is proposed to have its costs bourne by the unwilling individual?

Sorry, that second thing wasn't a question. I'm not sure it even qualifies as a sentence...

[Rosie] I don't see why disobeying the law, in an example such as this, would be any more effective at changing the law than not disobeying it. Why would this be more effective than writing to your MP, going on a march, and all the other legitimate means that we have? Surely in the absence of any other considerations, one should obey the law, and so if disobeying it would not achieve anything, as I doubt that it would in this case, one should obey it.
[rab] Wouldn't it make more sense to say that if the law is indeed ineffective as well as burdensome, that is an argument for changing it, not for disobeying it, and if it does indeed prove counter-productive, the government would change it themselves irrespective of whether people disobey it or not?

Yes but the question I asked was "What do you propose as a means to change the law?" which was not intended as an argument to disobey it. It was a question asking, erm, how you would go about getting a law you didn't like changed. I think.