Why can't Pluto clear its orbit?

Could you please explain why Pluto, despite being classified as a dwarf planet, is unable to clear its orbit? Is it due to its relatively small size and mass compared to other planets in the solar system? Or is there some other factor, such as its distant location from the Sun, that contributes to this inability? Understanding the dynamics of Pluto's orbit could help us gain further insights into the complex and fascinating world of celestial bodies.