So many people want to travel, yet most don't. They are too afraid of leaving home, affording their travels, concerned about safety, meeting new people, experiencing a different lifestyle, and the list goes on. Everyone has their own thoughts and concerns about such a change, especially if they ae travelling full-time.
These concerns, and any others you can add to the list above, are legitimate. The keys to making travel happen are first, the desire, then a lot of research and study, and finally dipping the toe in the water.