That's easier said than done. 99% of people would not be accepting of their kid starting a company vs going to college. And that includes doctors, lawyers, etc.
Unless your parent is an entrepreneur, or understands how the game works, then it's doubtful that they'll encourage you to start a company.
As an example of that mindset: my friend left an Ivy League school to go to Silicon Valley two years ago. He makes $100k+ a year now, and has incredible prospects. However, he's going back to school to finish his degree. Why? Because for the past two years, his Chinese parents have been telling him to get his degree. So after 2 years of nagging he gave in.
Now imagine that your parents aren't entrepreneurs, and you get $90k for college. You want to start a business, however, everyone's telling you that you'll fail because you don't have a college education. Are you really going to risk getting ostracized by your friends and family? Or will you take the acceptable route?
Agreed. I've got a lawyer friend who has his own practice. He's training his kids to be entrepreneurs. They don't get an allowance. However, if they find something around the house that needs to be done he'll pay them. He's training them to find opportunities.
If they want to go to college, they'll have to pay for it themselves like he did. However, if they don't he'll fund 5-10k or whatever to start a small business. He'll do that as long as they learn from their failures and press on.