You are right, anyone that is scared to lose money in gambling should not gamble at all because the person is not yet prepared to enjoy playing. Gambling comes with both profit and lose, and anyone that wants to start gambling must make up their mind to enjoy the both outcomes but If they are not ready, they need to go and look for a sustainable source of income where they work to earn and not risk to lose.
one thing most people fail to understand is that there is no business that is risk free like wise gambling however the risk involved in gambling is very high so gamblers are expected to know or ought to have learn how to manage risk associated with gambling.so were ever one stand to make profit there will definitely be risk of losing money that's were the saying comes in when there is nothing to gain there is nothing to lose.just like what you said if one is not willing to bear the risk associated with gambling ,them they shouldn't gamble at all .