Because there will definitely be a lot of doubt in your mind when talking about experts in an activity that cannot be fully predicted accurately, and I am sure as you said above that whoever they are, even though they are called experts, it still does not guarantee that they will always be able to predict the game 100% accurately, meaning that there will always be certain times for them to experience defeat. In the end, this is actually a choice, it doesn't matter if you want to make their predictions a choice as long as you gamble without exceeding your limits in the sense of only betting the amount that you can afford, it's like the idea of relying on luck and other people's skills to produce something.
You are right, if we correctly choose experienced experts and their prediction history is almost perfect reaching 90% accuracy but they offer high prices to members, some of their predictions may produce high chances of winning but we must prioritize our skills by combining expert predictions for the final decision to determine the bet . However, there are no accurate predictions, so prioritize your analysis to predict bets and add expert predictions for analysis or supporting factors to find chances of winning. Even though you are very sure of your chances of winning with predictions, you still have to set limits to avoid the risk of loss, because gambling results will not be certain with predictions and speculation, so anticipatory steps need to be prepared to overcome losses.