The thing is the study of UFO's could actually be a real serious field.
Actually, I'm not so sure it can. The big problem with the UFO phenomenon is that there is actually no such phenomenon. There are a huge number of completely different phenomena that can all potentially lead to the conclusion "I saw a UFO". It therefore simply doesn't make sense to look at it as a single coherent field. For example, here are some things that are known to have resulted in UFO sightings along with (some of) the relevant fields:
The Moon - astronomy
Hallucinations - neurology
Hoaxes - psychology plus various other fields depending on the form
Aeroplanes - aeronautics
Satellites - astronomy again
Optical illusions - neurology, psychology, physiology
Blimps - blimpology
Marsh gas refracting the light from Venus - conspiriology
Car headlights
Insects
Mass hysteria
Oil rigs
Boats
Meteors
Missiles
Chinese lanterns
Frisbees
There just isn't a field there to study, there are lots of separate phenomena each with their own separate field that, and this part is important,
already studies them. Ufology is just a sad attempt by people generally unqualified in any relevant field to try to pretend it's all the same thing.