I love sports, but I admit, I'm too lazy. When I study bets on just one sport, especially a popular one like football, I don't get any more motivated or inspired. I like different sports, including uncommon, exotic, or those with complex rules. Although for me, even baseball is a game with complex and strange rules. I could say the same about handball, water polo, and horse polo, but if you think about it, horse polo has a lot of its own specifics related to horse control and the inconvenience of working with the ball, because you have to do many things at once. And the rules of such sports probably reflect many of these factors.
In short, I have adopted a formula for myself that your thinking as a bettor will develop when you study different sports and compare them with each other. Do you think this development really happens? If so, how does it manifest itself?
Studying different sports may seem like developing your mindset according to the op, but to me I prefer focusing on football sports because following up different sports makes me lose focus. Football is one of the best among all, very seamless, effortlessly, tiredless and interesting to predic and analise than any other sport. So studying others sport may develop mindset but in other hands make a person lose focused from my own perspective.
If you follow a particular sport well, it is natural that you will have a good idea about that sport. If you are into one sport, there will be many things that will be easy for you to analyze. You will also have a good idea about the condition of the players and their performance, which can help you to win. I can also provide another point that the sport you like will give you the best results. Although there are some who participate in different sports at the same time. In the case of those who gamble, one sport may not be a favorite at times, in that case, if they bet on multi-sports, their results may be better.