Internet is full of information. There are many sites in the internet where you can learn how to trade. I became a good trader because I always read many post in this forum about trading. This forum also is one of the sources of information about trading.
The problem is that either some people are too lazy to find the information or some people just have this rushing attitude towards life and things and then they end up removing the idea of learning from their head.
Except for some who have some crazy brain that can make them understand something without learning it at all on the spot, which I doubt, there is no way someone can try their hands on trading to learn from experience and not lose hugely at first. However, with the huge resources available everywhere, this is something that can really be learned without stress and then do it well.