The average business takes 2-5 years to become profitable, thoughts?

The is why business owners have such a big monopoly on luxury:

The average person does not have the opportunity, the wealth, the stomach, the bravery, or the strength to spend 5 years on a project with an 80% failure rate, combined with the disastrous debt that unfolds once the failure happens.

The average business takes 2-5 years to become profitable, thoughts?
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