I really love this topic, i have an experience to share. I once invited a friend to learn how i earn some cryptocurrency, he listened to me and afterwards told me it will take time to mk a reasonable amount of money and asked me to look at another option. I then ask him how he goes about it. He told me that he wont explain it to me if i dont tell him what i wanted to do with the earnings.
This is another group of people to be aware off. They only want to take from you