I think trading is one of the best things you can do because the other methods are a lot more riskier than trading.
As a example you can do gambling but its just to risky and its also depending on luck.
yeah, trade is the best way, can also be said to be a safe way of all available means, such as gambling or other investments.
and also if we have the knowledge and strategies that it would be safer to reduce the risk on the trade.