It's hard to recognize happiness and the good life if you've never suffered sadness and faced disadvantages. In school, you couldn't afford to buy lunch or paste which made the purchase of your first word processor that much sweeter. All of the times you got teased about your clothes and hair makes you appreciate the times when people just don't say anything at all.
That means the best way to set your children up for a lifetime of happiness is to make sure that their childhood is total crap.