I'm sorry but I tend to disagree. I believe he is a schoolboy, albeit of about 16 or so years old. He looks to me a typical, if ever there is one, "grammar" school boy and the hat he's wearing looks to me more of a school cap than a deerstalker, it even has what appears to be a school badge on it. Right up until the 70s certain grammar schools insisted on boys of up to 17yrs of age to wear a cap. He certainly looks a lot younger than the lady accompanying him. The coat he wears looks to be gaberdine "mac", again typical part of a grammar school uniform. As for his size,, at the age of 15 I was a good head above my mom so I don't really think his height can be a factor.