If he has a favorite sport which he follows up by watching the match or updates, he can easily bet on that sport. If he doesn't, he shouldn't think of sportbet but should go for casino games like slot which is 100% pure luck. Since he is new, he can start with the demo in order for him to understand how the game works before betting with real cash.
Except a non sports person has people they usually rely on for gambling tips if not the risk will be higher than a routine gamblers because there is a lower risk when you already have the note of club performance and even if there would be losing it will be on the aspect of not knowing later circumstances but for a non sports gamblers they usually neglect the importance of familiarity so actually the casinos is better for them in one reason which is non deeply requirements of research and they can start casino anytime without being asked of past experience before it.