Why it matters
Most Hajj safety problems are contact problems first
In crowded pilgrimage conditions, the hardest part is often not identifying that a problem exists. It is getting the right contact details and group context into the hands of the person trying to help. A QR-based card gives that helper a direct next step.
That makes the system useful for elderly pilgrims, first-time travelers, family groups, and operators managing many pilgrims at once.