That’s conflating what people present to the world with their mind. It’s a very shallow understanding of what’s going on.

Regularly BASE jumping is seriously dangerous to the point where almost nothing else people do that’s “living on the edge” really compares. Think active war zone levels of danger, but they don’t need to dress up in spikes to show off how edgy they are. It’s possible to come off as a calm high school librarian while still being an extreme adrenaline junkie.

Next time you walk past a middle aged banker type in a sports coat consider they could be a furry, you just don’t know. Assuming someone seeming normal is actually normal is being blind to the possibilities.