>>22759824Breaking a brick without any training whatsoever with your fists won't turn out good for you. Fighting type moves are moves that would require more intensive muscle memory training and discipline than normal moves and are in a seperate league all together. Also Normal pokemon would be trashed to fuck by a "fighting" pokemon with moves made for combat. This is also why normal isn't super effective against anything, its nothing special.
Of course as humans we could not break solid rock with our fists but we're not pokemon.
This is also pokemon so this is the best explanation you'll get.