Plenty folk are sadly too idle, or just plain dim, to research a holiday before going. It makes no sense to us, either. It doesn't help that Geography seems to have not been taught much for about 40 years or so -- for verification, see almost any quiz show?!
I recall we went to Majorca (possibly Min), on a next to last minute package that had been heavily discounted. The plane as often happens had people going to a wide variety of hotels. When the plane went over more sea (as the Balearics are in the Med) it was hilarious to hear lots of passengers asking why, as they thought they were going to Spain (which as everyone knows, is only a Mainland . . .). When we got on the buses to reach the hotels, some had no idea if they were going to one on the seafront, or inland?!
We've been lucky enough to go on some cruises (when we both worked, so had more cash!) -- for those, it really makes sense to do ample research, as Ship's Tours are the source of many complaints, a major (& often justified) moan is due to the rip-off prices. In many destinations, you can organise your own trips, without any crowd, and at much less cost.
You can also -- IF you know -- visit some better places than the more obvious venues in the tour books? But some folk will it seems always be a bit nervous about going their own way?