Trading bitcoins would probably get you more profit if you know what you are doing and don't have mining equipment.
Mining isn't very profitable anymore unless you buy equipment, etc. Trading would be better if you don't want to purchase a miner, but trading also takes quite a lot of skill.
Yes, trading is a very simple thing to be able to get bitcoin with small capital, we just need the ability and strong archiving to make trading. Unlike mining, we need big capital to buy mining tools and others but the results sometimes do not match with what we spend.