Those memories of picnic table engine rebuilding with your father and a none too happy mom are priceless.
Those first tentative dips into understanding and manipulating the mechanical world around us can really build self confidence.
Early wrenching or al least understanding mechanical systems should be encouraged in today's youth. I sure like when I see pictures of forum member's kids helping with maintenance.
Certainly the proven wealth formula is to become a specialist in one thing so as to make enough money to pay others to do the myriad of other tasks life has for us. I'm just not sure this makes us better people.