people expect to have the jungler make up for all their mistakes and weakness but yet cant seem to help the jungler one bit. also at lower elos people dont understand alot in the terms of who has to start the gank... if my jungler is someone who is a carry type who dont have engage/cc then the laner must provide that in lane for the gank to work or the enemy has to be so drastically out of position. or if the laner is a carry type and the jungler has to be the one with the cc and allow laner to provide the bulk of damage on the gank.
also people have no clue on when and how to give the kill to the laner or to take the kill. if im playing NUNU or IVERN i dont need the kills as badly as the syndra,riven etc but if im kha, yi, jax whoever and i gank for a maokai top lane i need the kill more then he does.
also alot of the times people dont know when or how to gank, knowing the win conditions of the lanes, power spikes, etc or if i gank top can we pressure rift? if i gank bot and force a kill or a back can we take drag off of it and so on.
junglering have a fairly demanding role and have alot of variations and things they have to account for. its not as simple as farm jungle, gank repeat