Pastor..I will always advice my kids to strive to achieve more than me..If I didn't complete basic education(for whatever reasons)
-I will advice and struggle that they may achieve university education.
-If I had one cow,I will advice and pray that they have several cows
-I I was a lowly paid office messenger,I would pray that my kids become MDs,CEOs etc.
-etc,etc
However you need to advice them to follow their dreams not forgetting this is a harsh world which ussually judges one by his/her economic abilities.
Also advice them to read the book,'Rich dad,poor dad'.
plus @magigi's advice
Good luck
Hope is not a strategy