Why?
Why do you want to create a new gambling platform when there are hundreds already. Why not speak to the current owners of a reputed platform and seek to invest there? Your time or your money. That way you know you would be investing into something that is already working instead of taking a leap of faith and busting...
Let him launch one, don't discourage him, gambling is a multi-billion-dollar industry and there will be not enough gambling site to cater to millions of people gambling online, if this is his goal and his dream to set up one, then let's support him for doing so, every one of us is unique and wants to achieve something and not because the industry has so much on it that his concept of a gambling do not a have a space in the industry.