Cat breeds were shaped through selection for appearance and, in some cases, behavior. That history creates tendencies worth researching, but it does not write a script for one animal. Age, pain, early socialization, previous homes, handling and the physical environment all influence what you see.
A confident kitten may become a quieter adult. A reserved rescue may relax after weeks of predictable care. Even littermates can differ. Treat each random cat breed as a prompt for questions: how does this individual respond to touch, visitors, other animals, play, handling and time alone?
Mixed-breed and non-pedigree cats deserve the same consideration. They may not come with a registry label, but their health, preferences and relationship with your household are more important than whether a name appears on a pedigree. A baby face does not decide it either: in a study of 165 shelter cats, the round-faced, big-eyed features covered in the baby schema guide did not shorten how long a cat waited for a home.