Religions are living and dynamic entities. For some people religion plays a key role in their lives and it is a key aspect of life for them. Religions have distinct beliefs and existence.
Respecting similarities and differences between religions can help to foster a more harmonious society. If people are accepting of each others religions society will be a more peaceful place. There will be no arguments over whether or not someones religion is right and everybody will be free to worship whoever and whatever they want.