If you go ahead and give someone an idea about Bitcoin, then even if he is interested in investing in Bitcoin, if he suffers for any reason, he will definitely blame you. He will directly say that he suffered because of you, but if he benefits, then he may not remember this. It is not right to assume that those who do not make efforts on their own will get something good from Bitcoin. There are some people who have good approach to understand, they can often believe and be encouraged to invest just by hearing it. If someone shows interest on their own after explaining it in the beginning, they can be given a better idea about this matter.