-snip-
At this point I wonder, what reasons should we give these people to make them realise that Bitcoin is a right choice?
if you ask my opinion, i will simply explain it. first of all, i suggest you to do not force other people to buy bitcoin if do not want to be blamed if they are lost (of profit / investment value). But if you just answers the information for their questions about bitcoin is no problem to do. Or even sharing a non provocative information of bitcoin is good to do.
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?
yeah i would add a point. Bitcoin is easier way to do transactions across the countries without any third party so it may take easier and less fee. you can present this aspect as additional information while sharing about bitcoin.