Accepting Bitcoin as a means of payment
Bitcoin is, after all, a digital currency. So why not sell goods or services in exchange for bitcoin. This gives you the freedom to sell anything to anyone without going through any banks or financial institutions that may prevent you to do so. If you are already selling, why not accept bitcoin as payment. As a matter of fact, there is a massive list of businesses that accept bitcoin. 

These are some ways in which you can earn money with bitcoin. If you choose to mine or invest, it is important to do as much research as possible and be prepared for all possible outcomes.