The advantages of cryptocurrencies and blockchain technologies should be told to people in all available ways. Tell your neighbors or put the video on your channel and it will be good. Because really scanty percentage of people know about cryptocurrencies.
On a personal level, we can do much to change perception of people around regarding cryptocurrency.
A video or a blog will have a minimal effect should it be coming from a person such i who holds no significant position in the society.
Though you are right about telling people within our circle regarding crypto, perhaps this is the least we could do. To influence people near us and expose them to the subject matter. Hopefully, this will promote crypto positively and organically too.