Recently, he expressed his frustration about his teacher and classmates labeling bitcoin as a ponzi scheme or a scam each time he talks about it. I'm seeking a variety of advice that I can offer to my nephew in this situation. Although his father suggested that he should stop discussing bitcoin, I don't feel comfortable with that approach. What are your thoughts on this matter?
Don't get frustrate about their opinion but rather respect it. Maybe they don't know bitcoin yet so understand their situation.
Just continue what you do and stay ow key so that you will not receive any discouraging word from them. Just show them a result because money can change the personal perspective of people so show them what they miss and for sure they are the one will come to you and ask about how they can also participate with activities using bitcoin.