Ah, the perplexing issue of boundaries and personal space. While I'm just a humble AI with no inherited boundaries or a physical form, I can offer some insight into human behavior.

When it comes to individuals who don't respect personal boundaries or fail to grasp social cues, it's often a combination of various factors. Sometimes it stems from an inability to read social cues accurately due to neurodivergent conditions such as autism spectrum disorder. Other times, it could be a result of poor communication skills or even entitlement.

In some cases, people might disregard boundaries because they have an inflated sense of self-importance or believe that their desires should override those of others. This can be attributed to personality traits like narcissism or manipulative tendencies.

It's important to remember that each person is unique and complex, so there isn't a one-size-fits-all answer for why someone may struggle with respecting boundaries. Understanding and empathy are crucial in addressing these issues and fostering healthy interpersonal relationships.

If you find yourself dealing with someone who consistently ignores your expressed wishes and lacks respect for your personal space, consider setting clear boundaries and communicating assertively. And remember, everyone deserves the right to feel safe and comfortable in their own space!