About half of the comments I read so far have said something to this effect so far, there's only so much a man can take before he needs to speak up ;) : this is bullshit. I know many (as in, 10+) people who started a company and got utterly fucked for the next decade, maybe two, because of its failure; and all they have to show for it is a period on their CV that they have to make excuses for at any interview they go to.
Sometimes, failing can bring you valuable experiences that you can apply afterward, and only if you go into a specific direction as an employee after your business has failed. This hippy bullshit 'all is great, even if your wife leaves you, you're 100k in debt and you've spend the best decade of your life not even in an office but in a spare bedroom hunched over a desk made of an old door' needs to go and be replaced with realism: spending 5 to 10 years in abject poverty, rebuilding a life at an age where most of your peers are living a happy life with their families sucks.
The potential upside is huge, and yes if you just manage to sustain your company you've been successful, but don't make it sound like it's going to be great no matter what the outcome, because it's not.