While the idea of getting offshore to protect yourself for a short period of time may be feasible, there is no way that a boat will sustain you for any lengthy period of time.
If you are relying on solar or wind for power, what will you do when the regulator fails or you need new batteries?
If you are living without any modern electronic convenience, what will you do if your rudder breaks? No where to haul out. I suppose you could attempt to mend your sails for a long time, but eventually that won't work. Then what?
If I went one season without access to parts and tools that I don't have, living aboard would start to become dangerous........