It is not uncommon for cats to follow their owners into the bathroom, and some owners have reported that their cats will even sit outside the bathroom door while they use the restroom. While it is possible that your cat may be protecting you while you poop, there are also several other reasons why your cat might exhibit this behavior.

One possible explanation for why cats follow their owners into the bathroom is that they are simply seeking attention or affection. Cats are social creatures and enjoy being around their owners, so they may follow them into the bathroom in order to receive some extra petting or attention.
Another possibility is that your cat is curious about what you are doing in the bathroom. Cats are naturally curious animals and like to explore their surroundings, so they may follow you into the bathroom to investigate this new and interesting environment.
In some cases, cats may also follow their owners into the bathroom as a form of bonding behavior. By following you into the bathroom, your cat is essentially showing that they trust you and feel comfortable around you.
While it is possible that your cat may be protecting you while you poop, there is no evidence to suggest that this is a common behavior among cats. Unlike dogs, which have a strong instinct to protect their owners, cats are generally more independent animals and are less likely to feel a sense of responsibility for their owners’ safety.
That being said, some cats may exhibit protective behavior in certain situations. For example, if they sense a threat to their owners, they may hiss, growl, or even attack in order to defend them. However, it is important to note that such behavior is relatively rare in cats and is more commonly associated with dogs.
If your cat does follow you into the bathroom and seems to be exhibiting protective behavior, it is possible that they are simply responding to your own behavior. Cats are highly attuned to their owners’ emotions and may pick up on cues that suggest that you are feeling anxious or vulnerable. If you are feeling anxious or uncomfortable while using the bathroom, your cat may be responding to these cues by trying to provide you with comfort and support.
Ultimately, the behavior of cats is complex and multifaceted, and there are many possible explanations for why they might follow their owners into the bathroom. While it is unlikely that your cat is actively trying to protect you while you poop, they may be seeking attention, exploring their environment, or exhibiting bonding behavior.
If you are concerned about your cat’s behavior or have questions about their motivations, it is always a good idea to consult with a veterinarian or animal behaviorist. These professionals can provide you with expert advice on how to best care for your cat and address any concerns or questions you may have about their behavior.