"young people in London with good jobs are so confident and expensively dressed these days"

Fixed that for you.  Most Brits are still drab, badly-educated, nervous and skint.  

Instagram selfie world innit.

I don't see this. Most young men, in particular, are appallingly dressed. Young women tend to be scruffy but often charmingly so.

Now come on, Dux, you know the rules. Best not to air your opinions on fashion because they are always wrong...

Well dressed in 3Dux eyes:

that was veh londonocentric of u, dal

you should see the exhausting denizenettes of Glasgow

WHY ARE YOU OUTING MONTY!?¬¬?

Does that outfit always include the reichsadler lapel badge?

I don't think it's a reichsadler. Wings are different. But the circle below it is a bit worrying.

Glasgow sounds fun, but I submit it would be an exception.  Probably due to the above-average amounts of nemesis being visited on the inhabitants ?