He had to contact tower as it was open when he left. He didn't ask for VFR-flight following so no one would have been looking for him as there would be no handover. Again, not odd, I never did it.
As for no one looking when he didn't show, VFR flight plans are normally closed on short final upon the request of the pilot. He wouldn't have been overdue for 30 mins, but much depends on the competency of the tower @ the destination. We had to 'file' VFR, but it was pro forma in the local area. It is a bigger deal under ICAO (International) rules
Good to know. Just going over stuff other guys said. I don’t know them from Adam, so just curious.