Cats step on things and bite people because they are animals with hunting instincts, and sometimes they may be playing or showing a desire to protect their owners. In nature, cats usually hunt prey by stepping on things and biting, so this behavior is very normal in the nature of cats.
At the same time, cats may also step on things and bite people when playing, usually to show their vitality. and ability. In addition, sometimes cats may step on things and bite people because they feel threatened or worried about their owner's safety. This is usually to show their desire to protect their owners. Generally speaking, cats step on things and bite people because they are animals with hunting instincts, and sometimes they may be playing or showing a desire to protect their owners. If you don't want your cat to do this, you can try to train them or provide them with ample play opportunities to satisfy their desire to play.