Not only South Korea but various jurisdictions including the United Kingdom. I think the main reason for this is because blockchain can be integrated with various industries such as health and education.
I'm not a professional but I think it would be best if you research about exchanges first. For me, it is very important that you know the different exchanges before joining one. The exchange that I would recommend you to join is Changelly.
I just read this news about the top 10 Bitcoin casinos of 2018, and I thought that it might be helpful to share it with you guys especially to those who are looking for a good gaming site to join.