Future Car Drawings Is Concept Art Mostly About Monsters/robots/machines?

Is concept art mostly about monsters/robots/machines? - future car drawings

I typed into Google and I know it is not the most reliable, but most of the concept of art were pictures of cars, robots and controllers.
I want to be a concept artist for television, games and much more in the future, but also other things like designing characters? Or is it that most of the drawings of monsters, etc.?
It is also true that girls are conceptual artist?

Thank you:)