When a person says, "I am going to England to see the Queen," it is highly unlikely that they are literally going to see the Queen in person. Queen Elizabeth II has been the reigning monarch of the United Kingdom since 1952, and meeting her in person is a rare and formal occasion that typically requires an official invitation or special arrangement.
In everyday conversation, when someone says they are "going to see the Queen," they are likely using a figure of speech or an idiom. It can mean they are traveling to the United Kingdom, specifically England, for a visit or a trip. It might also be used humorously or metaphorically to indicate a visit to a significant or important place, event, or person, even if it has nothing to do with the actual Queen.
For example, someone might say, "I'm going to London to see the Queen" when they plan to take a vacation in the city or attend a prestigious event. In such cases, it's not meant to be taken literally, but rather as a colloquial expression for traveling to England or having an important destination or event in mind.