Me personally, yes, I will use a demo account even if it's only for a while. Its function is that, especially for newbies, a demo account will help us at least to understand more easily the mechanics of trading on the exchange. Sometimes, it will be easier for someone to learn directly rather than reading some theory. Although this does not risk our own money, but at least it can help us to understand earlier and get used to some of the features and uses of trading.