Although within this community Bitcoin is practically the only currency in which everyone believes, just look around a bit and we will find thousands of people who think otherwise.
At this point I wonder, what reasons should we give these people to make them realise that Bitcoin is a right choice? The first argument that comes to mind to convince a person who is sceptical about Bitcoin, is first of all that with Bitcoin you no longer need to delegate the custody of your money to a third party (banks, mutual funds, etc.): you are the master and you hold them. What else would you add?
The rule of thumb when you want to increase the awareness of BTC is by explaining the fundamentals behind it. Let me point it out- you should never convince or force anyone to invest in BTC especially if they know little-to-nothing about it.
When you convince or force someone, you are basically telling them to invest into something without them even understanding what they are delving in the first place.
The best way is for you to explain your idea on why investing is a good idea on BTC and you let them decide for themselves whether to invest or not. In this method, you are actually letting them think for themselves rather than spoon-feeding them with ideas.