Weird stuff is better than average stuff, that much is certain. If we stick too rigidly to our comfort zones, than any outside ideas are confusing at best and terrifying at worst.

Through frequent excursions outside of said comfort zone, we can prepare ourselves for the vast unknown in ways that will allow us to integrate new ideas gradually into our existing knowledge.

Let's not be too high minded - the same principals of which I'm speaking are as applicable to dirty jokes as they are to art or religion. Exposure to dirty jokes increases your tolerance for even dirtier jokes as exposure to Christianity increases your tolerance for Scientology.

For your own growth, instead of lamenting "Why does anybody believe/do that?!" - try to explain their beliefs or actions better than they could. Practice makes perfect.