"ストレートの人々がウェストエンドにいるのを見るといつも驚きます。とても高いのでストレートの人々はデートで何をするのでしょうか。"

Simplified Meaning:

This quote talks about how surprised someone is when they see straight (heterosexual) people in the West End, an area in London known for its theaters and expensive shows. The person wonders how straight couples can afford to go there for dates since it's very pricey. They seem to think of the West End as a place where mostly LGBT (lesbian, gay, bisexual, transgender) people spend time and money. The underlying idea is that some places or activities might seem more popular with certain groups, and it can be surprising or interesting to see others there. For example, if you usually see your group of friends going to one type of restaurant, you might be surprised to see another group, like a family, enjoying that same place. It shows that people from different backgrounds and preferences can appreciate the same experiences. So, in daily life, it reminds us not to be too quick in assuming who might enjoy doing what. We shouldn't be surprised if people who are different from us like the same activities or spots.