As someone who has never ‘raised’ any children, these points may not hold a great deal of credence; having said that here are my thoughts:

Pretend that Traffic Jams are Fantastic and Joyful
One of the great dividers, in terms of people who are successful, and those who are not, appears to be their willingness to travel.  I hate travelling in the car (like most people); but wish I actually enjoyed it – then a commute from North Wales to Manchester every day would be a dream come true.

Allow them to Backchat, a little
If you’re someone with great manners, and always empathising for others etc. You’ll find it more difficult to be successful.  You’re unlikely to be great at sales for example.  Obviously you need your child to be well behaved, so they don’t become some kind of delinquent; but if they sit in silence in the corner when they’re told to because “children should be seen and not heard”; they may find it difficult when it comes to board meetings and the like.

Get them to take up a Sport & Go to the Pub
The college of knowledge, is basically the pub. You learn the ways of the world, and gain social skills, something that uni never does.  Sport is great for building character, and encouraging a competitive spirit.

Just my unqualified 2 pence!