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You can recommend bitcoin to a friend but always remember to tell off about the risk so that they wont really be expecting that much in regards to this.
They would only realize off things when they do already got the experience on their own. Just dont make any assurances that they could really profit off from time to time.
Exactly my point, you can't be the person that going to give the advice, tell them about the things that they need to do but do not force them to get in and you don't have to tell them what to do next. That's what makes newbies quit or panic, they thought that it's easy money because the people that told them said so.