15 years ago there was no bitcoin at all, 10 years ago it was interesting mostly to some geeks. And now some countries already adopted it. Don't be too hurry, the events are going with their own speed: one day bitcoin can become a worldwide independent currency, but to do so it has to work on different things including known problems like price and time of transaction or scalability. One day we'll see both that these problems are solved and bitcoin is accepted mostly everywhere.