The reason people bet in multiple is to increase the winning potential and nothing more. That is the reason and they understand the risk that the chances of all the games being successful is narrow but that does not stop them to complain, regret and cry (especially when it is big potential) when they lose it 
That is true why people go into multiple bets and those who do that are the fearful gamblers. They are scared of losing and always want to win something at all cost so they split their stakes to achieve that. Most times what they stake in splits on the games of their choice is even more to what they would stake as a whole. If they ever get lucky and win on a game, they become filled with regrets of not placing more bets on that game.
Indeed but I have stopped doing that and currently I also able to stop the urge to gamble.
Gambling is an addiction and most people will say it is not easy to stop it once you get hooked on it. I wish you success in your struggle.