Why people should use bitcoin, because it is easy to send and receive money from all over the world, no need for iban no need to pay additional fees to the bank so it made our life easier.
In fact one of the reasons why most people use bitcoin because of the way they make it easier for you to move your money that does not provoke bitcoin operations anyway at the best it is in their easy process so few are obsessed with it this is why I trust most bitcoin.