A lot of people are convinced of things without ever trying, which they then use to justify not trying.

"I mildly attempted doing this once and it didn't work, so I won't bother trying again" describes a shocking amount of people's experiences.

I sometimes think people fail on purpose to justify apathy or giving up.

Then if anyone says anything they scream about how their experience is valid and nobody can tell them otherwise. It's wild.

There's something important about being outside our comfort zones. We need entropy in our lives and the best way to accomplish that is being in new environments with different people/creatures. What I've found is over time my comfort zone expands as I become familiar with more stuff.