Original sentence: An obvious case is the one of Belgium, where 10% of the eligible voters prefer to be fined rather than going in the polling stations, since the vote is compulsory in Belgium.For example in the UK voters once only had to vote for National and Local elections but now there are elections for the EU parliament, and additional local government elections, directly elected mayors, Scottish and Welsh parliament elections, and the referendums which established these institutions.It can also happen when voters don't see politicians as able to resolve their problems.Making it mandatory to vote, as in the Australian electoral system and in Belgium (Elections in Belgium) and Brazil.voters have to vote for more institutions than before
Edited sentence: Making it mandatory to vote, as e.in Australia, Belgium or Brazil.voters have to vote for too many institutions (too often)