I agree that it's all about personality. Some people are just naturally more adventurous than others. They're more open to new experiences and they're not afraid to take risks.
I appreciate your post and I think you did a great job of capturing the essence of the adventurer in your collage. The two figures in the collage are a great representation of the two different personality types. The one sitting on the sidelines is content to watch, while the other is eager to explore.