Legitimacy is a key factor for a stable government. The fewer people vote in general elections the fewer legitimacy does a government have, which can even lead to a fall of a country. So voting is a very crucial factor for the wellbeing of a country. However, most of us see how the turnout is going down every year, for example, the parliamentary elections in Cyprus; in 2011, the turnout was at 78.7% and in the elections of 2016 at 66.7% (Cyprus | International IDEA). This shows that people are going more rarely to vote nowadays then it was some years ago. That is why some countries have compulsory voting which helps the turnout not to go down. Compulsory voting should be legally required because the freedom not to vote might become the fall of a country, a high turnout is a core for a stable government.
The right not to vote is one of the civil liberties, so if it is removed, it will violate the civil liberties. However, if compulsory voting is removed or not enforced anymore the turnout will go down very fast. This gives no legitimacy to the newly formed government and it can change the laws without even having the real right to pass new bills or change the constitution. A government has truly the right to change something, only when it has the majority of votes, so people can give their mandate to the newly formed government that gives true legitimacy to a government. Then almost anyone can withhold their support from one’s government because the government itself has committed treason (broken the law) by overturning the laws that made it legitimate, so it cannot be seen as a disloyal act, akin to treason (Greffenius). Moreover, an illegitimate government without the majority can easily become a lawless government.
Some will say even that the turnout increased that does not mean that the voters will be really participating in the democracy by informing themselves and making right choices. However, people will start voting and information will spread around, even if it is not something you read, because you wanted to read about it, but we live in a world focused on technology, so advertisements are almost everywhere. A person can stumble upon things everywhere so it will inform people politically anyway over time. In the end people will have a small knowledge about what they vote for.