The risk of not guessing an impossible bet is extremely high; let's say the guessing percentage is so low that a loss is guaranteed.
Bets like this are like buying a lottery ticket, so you're essentially playing at random, leaving everything to luck and chance.
This type of game isn't everyone's cup of tea; it's a meaningless, blindly played game, and it's quite annoying for calculators and those who follow the games closely.
Betting on low odds is just a matter of luck coming at the right time, meaning if every day or every week you do just that then the odds are 1:10 which means 1 can be won and 9 bets will be sacrificed. Plus, most people who bet on low odds can't escape the temptation of doubling up that the bookie provides.