Github is the rare exception. I'm not saying that it's impossible, I'm saying that of the set of startups that have changed the world, it's just ... Github that's a lifestyle business. Every other one has taken funding. What does that say, empirically, about the nature of both models?

Note: I'm not arguing one's better than the other, I'm just rebutting OP's belief that 'lifestyle businesses are the way to go for everyone, woohoo!'