I know that the reason why we need to tell people about bitcoin is to spread the awareness of bitcoin,so that more people will adopt bitcoin so that it can be recognised and use by everyone just the way fiat is used. This will make bitcoin value to increase due to its volatile nature and the price is been controlled by demand and supply. Bitcoin is limited in number as we all know that we only have 21million bitcoin.
We don't only need these. Bitcoin is something I know that nobody is telling any other person currently to invest on, its like past three years or four year ago people bring other people into bitcoin investment, but I'm of tye opinion that internet alone is what is making bitcoin to have a wide awareness, because people that invested in bitcoin share their testimonies of their profits, you hear about bitcoin and you don't have to invest in bitcoin, so nobody will force to invest in bitcoin. Secondly its not good to advice someone to invest in bitcoin because of the disadvantages in bitcoin, its good to let the person know the positive impact of bitcoin and the negative impact of bitcoin before investing.