Demo are nit for newbies. Demo are for people that dies not understand how to play the game while using it to gamble. If you are a newbies and you do not know how to play a game, or you are not a newbie but you want to try another game and see how it is, you can use the demo mode for it.
Do you play your first game in the demo mode or use the real money for the initial phase,share your opinion and suggestions to the new gamblers.
I played with money because the game I first selected was easy to know. There are some easy to know games like roulettes, dices and slit games that you just need to be spinning.