In my opinion, bitcoin open the gates for those who wants extra income. Like joining bounty campaign for this we can earn tokens.
It is not always some extra bucks but also it is something that can be a full time job that is worthy fr all the efforts you are going to exert. This is not just an investment or a sideline, but it can help life to have a better future. Soon enough bitcoin will be only an investment but it will be a currency.