
Dogs following their owners into the bathroom is a bad habit that has amused many owners. To truly comprehend why dogs behave the way they do, one must consider their history of domestication and the unique bond they share with humans. Here are some reasons to help unravel the mystery of canine curiosity and loyalty:

Pack Animals: In the wild, dogs are pack animals, which means sticking together, watching out for each other, and ensuring the safety of all members. Your dog might follow you when you go to the bathroom; they might be doing so out of a natural instinct to stay close to their pack leader (you!).
Curiosity: Dogs actually have curious habits. You’re going somewhere, dogs. I want to know where you will go and what’s happening. A closing door creates curiosity; they might want to ensure they’re not missing out on anything exciting or different.
Protection: Your dog likes to protect you; they will view you as a pack member. Dogs believe it is their duty to protect you. They believe that when you go to the bathroom, they will feel compelled to protect you.
Bonding Time: Dogs have a natural inclination for bonding, and when you go to the bathroom, they may feel a sense of protection. If they’ve experienced that following you to the bathroom leads to moments of undivided attention or a loving pat, they’ll likely continue this behavior.

Separation Anxiety: Some dogs feel anxious and stressed when they leave their owners. Even in this brief example of owners going to the bathroom at that time, dogs are depressed and try to like seeing you.
Learned Behavior: When you go to the bathroom, if you’ve ever laughed,talked to your dogs, or reinforced them, they might have learned it’s a behaviour that gets their attention.

Resource Guarding: The dogs are exhibiting a form of resource guarding. They see you have precious resources and protect them from others. All the time, dogs protect you from others because it feels like they are guarding you from other owners.
Your Dog’s Comfort: Sometimes dogs feel comforted in some places; your bathroom might have some attractions, like the sound of running water, good smells, more astonishing tiles on a hot day, or even scents they find interesting.
While you go to the bathroom, dogs also come with you and feel bad for irritating you. You don’t scold your dogs because they don’t know; they like to protect you. You suspect it stems from anxiety or other behavioral issues. Consult the veterinary doctor; he can provide a good solution for this. Try to communicate with your dog daily; if he understands quickly, suppose it’s very anxious, which means contacting the veterinary doctor for a dog behaviorist to address the root cause.