In my opinion it is possible but not in the very near future.  Many people do not know or aware of Bitcoin and much more how to use it in a transaction but as I see in this new era of computerization and the high technology innovations with  blockchain,  people will realized the benefits of cryptocurrency and will eventually adopt it.   Little by little people will learn its ways and applied it in their everyday life because it is easier and convenient.  It is much easier for younger generation  to learn and adopt it because of their awareness at the young  age on  how to use computer and internet.  Eventually before we knew it, it will be used world wide.