It’s not people who decide who they wish to be when they are born, but gradually when rational succeed, people begin to choose what is best for them according to the convenience and what is just in their sight.
It’s God who choose people by grace. Initially the clan that was born of Abraham and then through Christ among the rest of the world.
Faith is like a seed, if its there then it will grow. When you don’t have enough best examples in locality then be one for the rest.
Whether you practise to become Christian or any other thing in the world. Being Christian or to become saintly in nature is an exercise of non indulgence with the objects of desire.