But, after hitting our teen years, girls became much more fascinating than monsters.
I'll try my best not to be offended. (I'm not upset - it's just that the phrasing could be much less offensive.)
When most of us reach our teen years, girls become much more fascinating than nearly everything. Reading, fishing, schoolwork, and sports, all play second fiddle to girls.
That doesn't turn off the imagination or stop people from enjoying reading fiction.
We know that such things don't exist so what attracts adults to stories about non-existent beings?
Almost nothing we read is truly about anything else. Both Fiction and Nonfiction is filled with beings that don't really exist - even if their species does. When I read a good story, existence or nonexistence of beings in the story has little effect on my ability to transport myself into the world.
Given that, why would I deliberately choose to spend my limited reading time in the same world I've spent the last 40+ years living in?
I choose books that transport me into worlds I've never imagined.
Old Man's War
The Caves of Steel
The Girl With All the Gifts
The Name of the Wind
The Way of Kings
The Wheel of Time
All of them transported me to a world I'd never visited and set my imagination aflame with possibilities. Many made me think about the world around me in new ways.
I just accept that this isn't a case of right vs wrong and read the stories I enjoy! :)