Bitcoin is seen differently by different people. Some still see Bitcoin as a Ponzi Scheme which they are not interesting to invest in it. And the religious people are the ones always having that thought on cryptocurrency. Op Bitcoin is not here to replace the fiat currency (paper money) but it's an alternative to it. Bitcoin can not be printed and it can only be used online. So that your already replacement phrase is wrong. And yes Bitcoin changed life but we should not see from that angle too. If you want to invest in Bitcoin you should do that for the long term . Remove profit from your mind so that you won't get disappointed. Always be focused.