Interesting that you bring this up; I have been considering writing a post about lifestyles and independence! What you say is, indeed, very true.

Many moons ago — when I went from working at "outside jobs" to working for myself — one of the exact processes I went through was "adapting my lifestyle so it could be supported by my work." In other words, not only did my work need to support my life, but I needed to create a life that could make the work I wanted to do possible. It is a two-way street.