One approach I adopted as a newbie is to stay away from trading at all means because i already know that the risk in trading is equivalent to the risk in gambling, and most of those that ever make profits from trading also recorded alot of loses that could possibly outweigh the profits amount.
I don’t think it’s a good idea for you to discourage newbies from trading. All the professional traders you see today started as beginners, so discouraging newbies doesn’t sound well to me. If I see any newbie that wants to go into trading, all I do tell them is that they should make sure they acquire proper knowledge about trading before going into it because they can easily lose money, don’t just start trading without learning about it, and make sure you start trading with just a little amount that you know you can afford to lose, because as a beginner, you are likely going to be losing the first money you deposit to trade with, just make sure it should be a small amount, so when you keep on understanding it, then you will keep on increasing the amount you trade with.