something suspicious or at least unexplained. My own quote
Anyone of us here can speculate on circumstances
From my point of view, anyone reported missing with the information, though scant in this case, needs to be addressed now, waiting for a period (who will decide?) to elapse before serious action is taken could lead to greater problems for the missing person and for Officialdom not acting quickly - no, not panicking! The family, 10,000 kms away, can do nothing except hope somebody is doing something, if only to eliminate certain possibilities and to satisfy them that inquiries continue on their behalf.