To prevent swelling in their hands from catching the balls.
Because when the person is catching, The ball is hitting their hand so therefore after a game they should ice their hand.
Try catching a few dozen major league fastballs and see if your hand doesn't start hurting like hell.
You can use your hands to grab and insect. You can also use bug catchers.
The earliest recorded use of a catchers mitt is in 1870 when a player used a "pair of buckskin mittens" to protect his hands. Traditionally they are made using leather, with a padded inside to reduce the impact.
It is possible. The ice melts in your hands, and if your hands are dirty, the melting ice may wash the germs into the drink.
Thermal energy will flow from your hands to the ice pack, since your hands are warmer than the ice pack. This will cause the ice pack to absorb heat and melt slightly.
Icecream Hands ended in 2008.
Icecream Hands was created in 1992.
Catchers call pitches during a baseball game to strategize and coordinate with the pitcher on what type of pitch to throw based on the situation, the batter, and the game plan. This helps keep the opposing team off balance and increases the chances of getting outs.
Catchers was created in 1993.
Catchers ended in 1999.
By ice I presume you mean catnip which is lethal in the wrong hands!