Creating an online economy using cryptocurrency is a great idea. You will be able to streamline and solve many problems by implementing blockchain technology in any industry.
Especially in this time, the use of technology has become a need to many. They are planning to start with online shopping. I hope they would be able to provide services globally.
Most platforms are accessible globally. It's good to start with online shopping since it's the most common platform and it exists everywhere. It is easier to design and develop as well.