Nowadays the identity of bitcoin is known well only amongst people, who are pretty much into the computer technologies and crypto-world. Others, especially the elder generation (people from 40, for example), imagine bitcoin as something mysterious, fake and dangerous, though it is not.
Its technological contents are more than real and very helpful for the modern world. So, in terms of this situation, I would highly appreciate your help with coming up with easy and understandable lines for changing peoples thoughts and points of view on bitcoin.
There is still a possibility for these "elder" generation to believe in bitcoin. We cannot blame them though because it is in their generation where many pyramiding scams and bankrupt investments and insurances came to be. It was them who experienced all those hard laboring but had their money fatten someone else's pocket. These may be the older than 40 years old people. So speaking on how to help them understand and use bitcoin, I guess words and lengthy discussions would get you to little progress. Show them proof, evidence how bitcoin has been real and safe for you. Include it to your regular conversations, let them be there when you do some of your transactions. Let them get the hang of it and how it goes around. Throw short liners of how you are thankful to bitcoin and its convenience maybe? Let them think about it and decide for themselves, or ask them directly if they have changed minds and would now be interested in bitcoin.