I'm from Belgium and we have mandatory voting. Well technically we don't, showing up is mandatory. You can just vote blank and cast your vote away and in paper votings you could just make a drawing or something and make it invalid, but nowadays most places are with computers so that got more difficult.

It's nice that nobody can try to prevent you from voting. You can't make it more difficult for certain groups to go to a voting station, your boss can't try to prevent you from going to vote because he doesn't like your political opinion, you just have to go and in the case that for some reason you can't make it, give power of attorney to someone else.