For me, Bitcoin has many advantages, one advantage is it gives to the individual money to sustain the basic needs, It also reduce the increasing number of unemployed in some countries, The people who work in bitcoin develops the ability to reason out, enhanced the English proficiency, that's the some advantage of bitcoin.
Yes bitcoin can be used as additional income, Bitcoin is very helpful to improve the economy. Bitcoin can also be used as a key to the future by way of bitcoin investment.