One minor twist: the legislation mandates that one reports to the polling center. The uninformed can select "none of the above" if they are not sure what would be best.

The reason I think mandatory voting in Australia is nice (tiny fine for not doing it, so turn out is like 85-95% every time) is that because everyone obliged, it keeps voter disenfranchisement politically difficult. When you go to vote on election day, you wait 20 mins, tops, usually less, and you can vote ahead of time via mail or in person. It's always Saturday for this reason too.

I'd argue it's this easy partially because everyone HAS to do it, so if politicians start making it hard, people are gonna be pissed very quickly, so no one messes with the well-oiled machine.

And there are no stupid "get out to vote campaigns" wasting valuable headspace where instead we could be talking about actually issues.

Australia's electoral system is far from perfect (single member local electorates which basically guarantees two stronger parties), but mandatory voting is definitely a feature I do not want to be rid of.

It doesn't "just" do that. It totally reverses the ability for governments to block people from voting. If it's an obligation then people must be provided a reasonable chance to vote. It makes more people engaged in politics as well instead of "can't be bothered"