Freedom of thought has spread throughout the world, and many religions are now being practiced in places where they might have been formerly restricted. This new religious freedom has affected many people, and it has given them the chance to choose which religion they will practice as adults. This is one of the benefits of modern transportation and social mobility.

Joining a particular church is generally easy, and many religious institutions will accept people without conversion to their particular religious beliefs. Many religions do have ceremonies for those who wish to convert, and these are often for people who marry a person already practicing the faith. While few people are willing to leave their own religion behind, some have always been willing to join a new religion if it is necessary for marriage and children to be legitimate within a community. Conversions for most religions consist of classes for the potential member to understand their choice, and a ritual or ceremony is usually held to celebrate the new church member.