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?
Soccer is the easiest sport to get to know because there are not many rules that may be in it and generally football tends to be more liked. For me it is better to focus on one sport and it should start with the sport that we like because then we have a much easier view to implement in gambling although the level of winning cannot be fully guaranteed.
If someone adds several other sports as favorites it may not be a problem to channel the hobby, but it is much more problematic when implementing it into gambling because our focus will be much greater. Different people may have different views but for me it is better to focus on just one sport.