So... finally had an email exchange with the only other "proper" mature student on the course (ie over 30). He's an overseas student and he went home over the southern summer.
For one reason another it looks like he won't be coming back next year which (from a selfish standpoint) leave me as Mr Outlier. Staying solipsistic just for a moment, he's the guy I sit next to in lectures so I'll be feeling a cold draft all down one side (c. Eric Morecambe).
No time to ruminate now.