First, we need to understand that not everyone will adopt cryptocurrency. The volatility of cryptocurrency scares some people such that they will prefer to stick to their jobs. However, the number of people that will turn their back on cryptocurrency will be smaller than those that will understand.
Now, when cryptocurrency is generally adopted, to an extent there will be a decrease in unskilled labor. This has both negative and positive impacts. To an extent, people may turn their back on acquiring high educational certification since it is all aimed at making money which is available with cryptocurrency. All they need is to have a basic education.
Again, the financial system will be improved and money flow will be easy, but the question remains, WILL THE GOVERNMENT ALLOW SUCH? , IS REGULATION SUFFICIENT TO SUSTAIN THE NEGATIVE IMPACT OF CRYPTOCURRENCY?.
Finally, who will want to leave a decentralized system like cryptocurrency for offline jobs where he will be subjected to hard labor?