While this may sound absurd, this happens more often than you think. Typically, the battle is over a child wanting to bury dad somewhere near that child or somewhere that the other children do not want. It may seem petty, but these things happen. It can be even worse when there is a second marriage and the children want their dad to be buried next to their mom and not the second wife.
The solution is to leave a burial directive stating what your preferences are or buy a plot and state the specific plot where you want to be buried.
The goal of end of life planning is to make it easier for your children and to lessen potential conflicts.