A lot of people still required it for spiritual reasons. Atheism is not for everyone and some still need directions from a superior force in order to put their values/lives in order.
I'm find that behaviour naive and kind of foolish, but as long as they are respectful with others and don't try to convert everyone else I don't see a problem.
That's said, Christians are way less indoctrinated and usually are freely to choose, at least in my experience ( western europe ). If that's possible is thanks to the historically separation of church and state, which is something the other 2 big religions dosnt seem to like.
In most of developing countries (Africa and SEA) is free and dosnt require an active internet connection, so literally everyone with an old phone has access to it