You need to loose it all once so as to understand something)))
Of course, both education and experience are important. More important point is - how to get one or other. The demo is great beginning for experience. Further, news is an important part of education as markets are greatly influenced by related news.
There is only one way to become experienced and that is to trade. There as much as you can, whenever you can and you will see yourself improve.
You won't trade without any losses, there's always some risk and you need to be ready for this. If you don't want to loose money, it's advisable not to trade at all)I guess if he will just thoughtlessly trade he will lose everything. Don't u think so? Trading in demo - yep, it's useful. But trade without any experience its only way to lose of all money