Online gambling law differ from countries to countries. You probably should hire a legal team so that they can advise you what to do and what not to before you start taking some huge steps or else you might fall into some deep trouble. Probably a quick google search might help you get the information you are looking for? And why would someone play on an unlicensed casino while are tons of other well known casino with a license? You probably should rethink about getting a license.
Yes, we need to obey the rules, especially in gambling specifically in casinos, because we all know that in casinos a huge amount of money is can be get by winning a jackpot, and also a large amount of money is being regulated every day, thought you want to operate it in an online still you need to have your business licensed to operate it and run in online.