Those kinds of services are really demanded right now. So, it’s an excellent idea to provide introductory courses for those who want to learn about blockchains and cryptocurrencies. Many people would like to invest in this sector. But they’re afraid to take this risk because of the lack of knowledge. I think that guidelines like - learn forex trading step by step also were highly demanded when forex trading became new but gained popularity quickly. You probably might use this as a layout for your course and apply some ideas to your project.