Indeed, they are enabling it, but I think like any vice its all about how you handle it, if you have disposible income and self control and you use these prediction markets as a little entertainment, I don't see why it can't be a bit of fun, like you do spending your money on video games!   

 Video games. That was a good come back and very funny. This chat is “entertaining.” My profile picture was many many many moons ago. I am not a child, nor a man that plays video games. I don’t have games on my electronic devices either.