First, simply investing isn't "low risk" but rather involves lower risk when compared to trading. However, both of them work just fine. One main advantage of simply investing rather than trading is that you don't need any special knowledge, all you need to do is make the purchase. But on the other hand, not only do you need to have knowledge of trading, you have to be good at it and be able to make your own call. So, if you have the knowledge to trade, give it a shot to see how good you are. If it's not so good, you can learn more or stick to simply investing.