Why do the Queen's Guards push those who block their course? Because they are the Guards. When on duty, the guards are focused on what they are doing and won't budge from what is required of them. Despite being a fantastic tourist attraction, that is not their only function. The public does occasionally approach them quite closely, but they do so at their own peril. Do not provoke them or obstruct them from performing their duties. It won't turn out well if you do. They are all trained troops, and the most of them have had extensive combat.

The Queen's Guards. The infantry and cavalry regiments assigned to protect the official royal residences in the United Kingdom are known as British Guards and Queen's Life Guard (or King's Guard and King's Life Guard. Since King Charles II's reign, the British Army's Horse Guards and Foot Guards regiments have been in charge of protecting the Sovereign's palaces. These regiments date back to before the English Restoration (1660). The Guards are active-duty soldiers.

The sentry posts have been moved away from the public more frequently recently despite the fact that the guards were previously stationed among the general populace. This is because of incidents in which tourists interfered with the guards' ability to do their jobs and in which the guards had to reprimand tourists for disrespectful or hazardous behavior.