Obama's approach to tough love parenting is illustrated below, in an average American family setting. Observe, and learn.
And just to reinforce that you will not be building anything in the future -- and that everything will be built by replicators -- this Wired feature spotlights The Replicator 2 by Makerbot.
Imagine children learning to program such 3D printers to create all kinds of objects and machines. As children grow older, the "toys" they create can grow more sophisticated -- and more dangerous.
As replicating "inks" grow more varied and more capable, the limits on types of objects which can be created will retreat into the horizon. From weapons to vehicles to adventure toys to shelters and more, the list of things "you didn't build" is apt to grow very, very long.