In today's world, people are more aware of their spirituality. Learning about their spiritual side, is spurred on by some untoward incident or a serious situation in life they are faced with. When they are up against what seem all odds, they look for a Higher being who they think must be in control of everything. And then the discovery is made-GOD,omnipotent,ever forgiving, etc, etc,.
It takes life's experiences to get in touch with one's spiritual side,although researchers say that a woman will @ age 38 and a man @ age 42 or so. I did a great deal of reading on the subject a few years ago.
So, until such time, they never mention GOD ! But once they have experienced GOD in their lives, they will look for every opportunity to praise GOD and be vocal about what He did in their lives.
Indians however, are very particular about GOD -whether they are Hindu, Muslim or Christian. Right from the time a child is born, he/she is taken to temple, gurudwara, church,etc.,and even in schools, moral science lessons always focus on the need to be god fearing and have good values. Prayers are said at assembly every morning which is compulsory and so Indians are conditioned to be grateful to god for everything whether in school or at home,at work or any where else. And they are very vocal about it. Singing hymns or chanting mantras are done in every home first thing in the morning.Business establishments sport a picture of their diety on the wall behind the cash counter. Any public function always begins on a spiritual note.