Suppose I am a manager at a mall which is quite far from the main city (just an assumption). Due to the fact that coming at my mall would result in a lot of time being spent there due to its distance from the city, many people who observe prayers might find it difficult. As a Muslim, I make arrangements for a prayer room where my customers can offer Salaah easily.
That is no problem, but including a prayer room for Muslims might raise the eyebrows of people of other religions. Their religious sentiments might be hurt owing to the fact that the manager is a Muslim and he took account of the needs of Muslims only. Islam doesn't permit hurting the sentiments of other people, so should prayer rooms be built for them too? There is a problem that it might give rise to shirk over there.
Shirk is the worst sin, but rejecting their request might make it look that Muslims are unjust and do not treat others equally.
As a manager, what should I do?