I don't understand if how trading is the best way of earning bitcoins for a newbie, as trading needs a lot of understanding or knowledge and a newbie cannot be able to get to that point as he joins the community, so that can be dangerous for a newbie.
yes you are right, trading is very risky for newbie. all it requires research, even someone who has been playing trade long enough sometimes could still lose. so that the risk of loss is higher for newbie.
for newbie better, looking bitcoin free to try small trades, at least learn first.
Obviously, even the experts sometime loss some money in trading when they get unlucky, then how a newbie can manage to do that without any knowledge?
A newbie should concentrate on other small methods of collecting bitcoins first and later when he learns everything then he should try big things like trading etc.