Introduction to beginners to understand Bitcoin depends on their ability to absorb and trust in virtual currency.
For those doubting the security of virtual currency, you should talk about the similarity of virtual currency versus the flat, about its innovation and utility over traditional currency. Do not let the bad side make them nervous, let them know later.
For those with a virtual hobby, it is a great thing to have a companion. Please share your experience for him.
Rightly said, you really cannot teach someone who already sees it as some scams or fraudulent deal. If it is just a case of ignorance that can be corrected but those adamant and unwilling ,just ignore them