Bitcoin is the advanced technology useful for doing big transactions in a simple way. Some of the people said that Bitcoin is not useful, waste of investing money, etc... Don't think in negative way and research about bitcoin, then you will get an overall idea. Be positive....
yes bitcoin is an advanced technology and it is known by all kind of users many people around the world are using bitcoin for many purposes and still there is a huge usage in eastern countries so its useful for me I value it a lot