Concern about running out of money or not being able to sustain the lifestyle financially. I have found I spend just about the same amount of money living in my van as I did living in my city apartment. The money is just dispersed a bit differently; instead of rent being my big expense I have a van payment and spend more on gas. I still need food, insurance, van maintainence fund, internet, and misc expenses. So be careful when hearing that van life is so much cheaper.