Even robots don't make 100% accurate predictions. Like you said, anyone going into sports betting should just learn the tactics and strategies of sports games and rely on what they know. Then they will be good. It's even simple to make predictions as long as the gambler pays attention to sports fixtures and knows the performance of clubs, the ability of players, etc.
There's AI, or ChatGPT for example, but even if this AI knows all the information and stats of the opposing teams, it still cannot guarantee to predict the winner. Sports betting is fun, but we still face the reality that it's hard to win in gambling. I didn't say we can't win because that is not true, it's just hard but not impossible. Of course, it can be learned, especially if we know how to control our emotions. We can learn from our mistakes based on experience, and eventually, we will be able to develop our skills and maybe one day become professional sports bettors.
Not that i in any way would trust AI or human being right 100% of the time, because being 100% right about the future, isn't just a billion dollar gambling invention, it would change the world as we know it. But not being right 100% at the time is hardly a reason on not to trust predictions at all. Because that's what sport gambling is. It's literally just predictions about the outcome, and reason it has money involved is that it's impossible to predict the future. If someone would have cracked the code on that, they would have broken the whole gambling industry.