At least for Germany that is not true most of the time. If you vote in your home constituency it is normally enough to show your Wahlschein (letter that show that you allowed to vote and where).

Linux is build with different users in mind. So it is not a problem to forbid a user to run any program the root don’t like, or run only programs the root like.

I guess the idea is that your parents store the date and you don’t get root access (or you store the date for your kids and don’t give them root access).

They tried once but it did not work out 😉