Easter Bunny is one culture & not sighted by millions of people across the world.
Spirits & U.F.O's are a worldwide issue sighted by millions of people with accounts going back thousands of years.
This is not a one culture thing that just started.
It is uniform across cultures for thousands of years.
That is something worthy of study.
PLENTY of people believe in the Easter Bunny, Santa Claus, etc.
If UFO's and ghosts are to be studied, they must be studied too!
To write off the Easter Bunny is to be a poor scientist