Maybe I'm not understanding the 'class system'
Whenever I read summaries about the series, Charles is always referred to as "middle class" along with Bruce.
Charles went to the same prep school as John and Andrew, two boys always defined as wealthy. What distinguishes Charles as being middle class if he had a similar boarding school upbringing?
The same logic applies to Bruce, always described as middle class. He too was shown at prep school in "Seven Up!" and appeared to be attending an expensive boarding school at 14.
As an American, it would appear that all four of these boys had the same advantages. I'm not sure what I'm missing. Is the class system even relevant today, or does one have far more advantages in the UK now?