I will not advice newbies to trade until they know what they are doing. There is a high chance to loose it all if you are trading without a plan. Best thing to do is to buy and hold patiently.
The problem is that most newbies are not aware of the things that they are doing in here.. And if they keep having the same kind of "losses" they are going to lose all their money quickly.
If they have knowledge, then why they wouldn't be able to trade? Of course that they can.