Like the MOMENT you are born you are given an identity.
Your name, where you'll grow up ect it's all chosen for you.
You're baptized as soon your born, attend church every Sunday with family, friends, might even belong to a choir and go to Sunday school
You don't just throw that all away as soon as you turn 18

You can change your name, religion ect as soon as you have free-will but how many people actually do? Not many.
Millions of people are BORN into the religion they currently practice, that's what I said.
Just when as I said when Africans came to the West they were given a new identity and Religion, how many people rejected those? Not Many? Why would they? It's what they KNOW.
No one chooses to be a Muslim in a family full of Christians without friction and vice versa.
Think outside the box sometimes and sorry if you can't grasp even that you are fucked.