When considering whether to order support for postsecondary educational expenses, the court shall determine whether the child is in fact dependent and is relying upon the parents for the reasonable necessities of life. The court shall exercise its discretion when determining whether and for how long to award postsecondary educational support based upon consideration of factors that include but are not limited to the following: age of the child; the child's needs; the expectations of the parties for their children when the parents were together; the child's prospects, desires, aptitudes, abilities or disabilities; the nature of the postsecondary education sought and the parent's level of education, standard of living and current and future resources. Also to be considered are the amount and type of support that the child would have been afforded if the parents had stayed together.