The maximum numbers of bitcoin to be mined is 21 million bitcoins. Bitcoin can not be used as money by the whole world because it has a maximum cap. My opinion . What is your stand ?
When time comes that whole world accept bitcoin,this will be the precious of them all,meaning people dont need just to use bitcoin because thousands of altcoins if not millions are in circulation to be used.depending on their value,thats why if you still have a chance you must gather how many as you can hold so in future you will be ready and relax with your bitcoin on hand while others are begging to have one