Gold can't be used as a currency but it still holds value. I don't think the two are mutually exclusive. Bitcoin is the first ever digitally scarce entity. I think its easy to imagine a new generation used to technology placing value on this. As for it being a currency well once the volatility stop why not
If I have my own method to teach bitcoin to beginners, namely: by presenting it using PowerPoint, the explanation should be informative and efficient and accompanied by practice. After the presentation is over I will give the bitcoin materials to the beginners so they will relearn.