how would you earn money if you are afraid of being scam? Risking is the key for us to know what would happen,
maybe we have been scammed but it doesn't mean that it will always happen. Just always take the risk to know everything that you wanted to know, don't be afraid.
For being scammed by people are normal especially if you trust to much and easy to people just to earn money. Sometime people will just get your money and scrammed but then from that way you learned, so on that situation you will always remember that you do not need to trust fast so you will not lose money that fast too.