My father (who has always been self-employed) once said "the best thing about being self-employed is that I can choose my own hours. I can work whatever 100 hours a week I want."
So yeah, it's a lot harder to deal with banks if you're self-employed, especially as loans seem harder get these days.
Why work 8 hours a day for someone else for a living wage, when you can work 24 hours a day for yourself for free?