Most people don’t start a business because they tell themselves that it won’t work. It’s the hard truth that most people don’t want to hear.
If you read about most founders they don’t become rich due to luck or background or whatever. No most of the time they set themselves a goal and then do EVERYTHING to get there. They don’t care whether their parents had money or not. Or whether the market timing is right. They just do whatever they need to do.