and do not mind those who says that trading is hobby, is just like saying they love losing money because we can also refer trading as gambling and you know what gambling is. You can easily lose what you use in gambling or trading, therefore whatever amount you are using for trading should be equivalent to what you can afford to lose.
I agree that a trader should use the amount of money that he can afford to lose to trade but I do not agree that we can refer trading as gambling. Trading and gambling are completely different but their risks are similar because most traders do not know how to trade but have greed and doing trading like gambling.
Yes I am directly referring to the risk factor, and if you equate the magnitude it's similar or directly the same as gambling. Of course we both incurs loses for both and whatever that has the tendency of losing someone funds completely can be directly or indirectly subjected as one, and yes we say they aren't same because they are not commonly as one. But in general, we should be able to know what amount that is that suitable for us to lose or that we can accept pain of losing such amount.