Although both parents have the right to petition the court for a support order adjustment, modifications are not automatic, and a judge may decide not to alter the amount of support after hearing the facts of the case. That is to say, simply because an obligors's income has decreased, a court may find that the decrease in income is of no fault of the child, and will not decrease the child's expenses, and therefore should not affect him or her financially. Likewise, a court may find that an increase in the child's expenses may have been calculated by the receiving parent and is not necessary, and therefore the support obligation of the paying parent should not increase.