Originally Posted by
Often1
Quite the contrary. Nobody here can even think of any carrier at any location which handles bags for ground transfers. It is not as though there is a cohort of travelers who have had their ground transfer bags handled by carriers worldwide and then arrive at NRT or HND to find that what they see elsewhere is not the case in TYO.
Nobody here but FT is not representative of the general populace. I can imagine infrequent travelers or travelers who aren't used to cross-city connections not even thinking about it when the airline blithely lists it on a single ticket quote. Yes, there is a warning for EWR/JFK connections but it's not exactly prominent and those are at least in two different cities. The fact they are two different airport codes SHOULD trigger people to look into it further but a lot of people's experience with buying an airfare on a single ticket is limited to checking their bags in at departure and picking it up at arrival. Just look at OP's original assumption.