Can one ask for forgiveness for a person whose culture of dressing is to attach talisma to his dress or hat and wear them when coming out.

Question

Can one ask for forgiveness for a person whose culture of dressing is to attach talisma to his dress or hat and wear them when coming out. Usually the belief is that these talisma is to protect one against his enemies. But some claim that they wear these kind of dresses just to display their culture and not having any such belief. When a person dies wearing such dresses, can one pray for him? For he does not know whether the person have such beliefs or not. Such dresses with a talisma attached to it is often worn by chiefs in that environment. It is also a culture that these chiefs remain indoors. They do not attend Musjid for Jamaat Salaat. When such chiefs die, can one make Dua of magh-firat for them? Most of the Aalims here (in Ghana) pray for the chiefs who die, arguing that some of the chiefs wear those dresses for the sake of their culture but not having any belief of such dresses protecting them. Are they right in doing that?