There is no place like Silicon Valley where taking a career risk to quit a job and start a company is normalized, understood, and encouraged.
Yet with the high rents and the lack of universal healthcare it takes a crazy person to take such a risk. I personally will start my startup from abroad when the time is right.
There's your salary. If the company works out or not later, well, you're a founder and has the experience, it's easier to get a job anywhere.