Literally the whole premise on which the plot of Inception rests was to convince the child progeny of wealth to forgo it so as to prove that he could make a name for himself on his own merit and not by riding his father's coattails.

There's a very big difference between leaving a child to fend for himself (so to speak) and attempting to help a child develop his own sense of agency, including restricting access to a smaller-than-naturally-limited set of resources.