Telling someone about Bitcoin takes a long time because there is so much to learn. So if someone makes a wrong decision and does something wrong, they can blame me for it, so I'm also very afraid to influence anyone about Bitcoin. However, if someone asks me something out of interest, I try to teach them with my best. But I tried to convince my family members about Bitcoin but they are old age people so I couldn't convince them much.
If someone or your friend has an interest, of course he or she has studied well what you taught them before. Giving this person an understanding is much easier to teach than someone who hasn't studied or understands what Bitcoin is. Usually people who have this interest are ready to lose if something happens to their finances or assets. And in this case, if something happens to your assets, they are not entirely to blame. To convince elderly people, I don't think they will believe that their era is certainly different from our current era.