Why is it useful or important to learn about the different religions that people around the world practice?

Religion surrounds our daily lives and studying types of religion can help you understand many types of differences that are visible all around you. Studying religion increases your understanding of global complexity. ... To study religion is to delve into how religion interacts with all of these facets of our world.

So they have a better understanding about peoples beliefs and how they see the world. It is nessessary to understand this so people are not so quickly to judge.

Explanation:

one central belief of buddhism is often referred to as reincarnation -- the concept that people are reborn after dying. buddhism is a philosophy of life expounded by gautama buddha ("buddha" means "enlightened one"), who lived and taught in northern india in the 6th century b.c.