Why do we have to appeal in cricket..

Why do people appeal in cricket? Is there any other sport in which people appeal? Not that I know of. A footballer does not appeal after scoring a goal. Not sure what the reason behind this silly rule in cricket is. What it also does is that leads into umpires getting biased in their decision-making based upon the intensity of the appeal. I wonder if the ICC would change this rule rather than bringing in useless rules such as the new no-ball rule, where the next ball after a no-ball is a free hit for the batsman. Give us a break. What more do you want, 500 runs scored in an ODI, and if that is not all, the same being chased also!!  Bowlers will refuse to play cricket one day… or will ask to be paid more.