Indeed Australia does compel its (possessive apostrophe ie it's = YART?) citizens to vote. However, there is nothing to prevent the casting of a donkey vote. There is a slowly increasing push for this course of action, but it is still frowned upon by the majority. The compulsory voter turn-out merely ensures that all citizens are exercising their right to vote, or not to vote. The prevailing attitude in society is what really compels voting.

2c well spent