Trading will be a good business if you can train yourself and have the knowledge for it. It is a good way to earn. You have to be adequately informed with everything about it. Your government approving it will open up many opportunity for the youths to buy, hodl and earn in cryptocurrency.
It is more of a job than a business.
Though if you wanted to do a business related to trading and investing and if you have the money to start that, you could just start an exchange or a trading platform if you wanted to but that would be hard and risky considering how careful people are in this community. Maybe accepting them in a store if you have one is the easiest one.