Tell them that every investment is a risk, tell them that crypto does not work with supply and demand and tell them that crypto is unregulated which means that the people around him have more power than banks! have him watch the Video of Paxful when they created the school in africa

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You can use both! For safety reasons, the best way to process this is thru a Paxful.com because they have the fastest transactions

Use Paxful.com I personally use them