Even in popular sports, some leagues aren't suitable for placing bets. Take the examples of women soccer or leagues of youth under 16 years old. The are unpredictable leagues for football fans in general. Only addicts will look for any game to place a bet even the game is sometimes unpredictable with normal standards. It is a major sign that the gambler is really into addiction.
Very true, in soccer it's not worth to place bets when it's women soccer, I placed a bet on such a match in past and the result was a loss. I placed that bet to only see what outcome I'll get but it was very disappointing.
The ones who're good at esports betting should also understand that all games aren't equal, in some games one gets higher chance of winning the bet if research is done in the best way while in some games even after deep research one could easily lose the bet.
Addicts don't care anything about leagues or type of games, they continuously bet on the games that are live. Some of such addicts keep betting on leagues where chance of winning is quite low because the outcome of such matches is highly unpredictable.