I am very realistic about the future of blockchain and DAG technology. I think Crypto currency is just a part of it. Think about the projects currently working for better internet, better social media, better Media streaming, better supply chain and so on...
It is just a revolution and you will see everyone will be part of this revolution very soon.

Internet took more than 25 years to reach every corner of the world. I think it is very unfair to judge crypto in a time frame of 5 - 10 years.