There are lots of events people bet on that I wasn't really aware of, it was from the forum that I learnt that bets are placed on the oscars..sometimes I ask myself if these are actually easy to bet on...for example when you are familiar with actors and actresses you'd know that they might end up winning some specific categories mentioned, this is not going to be easy everytime though but I feel like people might win from it
If you check the prediction markets, you will even see betting of something stupid like something related to war and other things that you will not expect.
I have not tried prediction market before because I prefer just sports and casinos but what I know is that people should be careful and only use the amount of money that they can afford to lose because any bet can be lost.