In the US, your religion is primarily chosen for you at birth. I wouldn't say there's one most popular religion that teens "join" though.
Religion..!! Islam
There is not really a religion that is the most popular. All religions matter in life and are considered the most popular.
Christianity is most popular in the Caribbean but there are many other religions.
The World biggest religion is Christianity and Islam.
Buddhism and Shintoism are the most popular religions in Japan.
Buddhism and Shintoism are the most popular religions in Japan.
Hinduism is a religion of its own. its the third most popular religion in the world after Christianity and Islam.
It's hard for a US citizen to see how the question makes sense. There are many religions practiced in the US (along with many people who practice no religion at all) because those religions exist. Anyone is free to practice religion in the US as he/she sees fit, as long as the civil law is not violated. There is no state religion here, and no requirement to practice a religion. Freedom of religion is one of the issues that led to the existence of the US in the first place.So, in a sense, it is not "the US" that has many religions; in terms of the civil law, enshrined in the Constitution, the US has no religion in particular. It is the citizens of the US who are free to practice whatever religion they choose.
Christianity is most popular in the Caribbean but there are many other religions.
There are many different religions in the Southeast U.S. because of freedom of religion.
What religions are dominant in china Describe the most popular religion (what do they believe)