I think anybody who thinks they've booked a flight to London and lands in Oxford is going to be confused and annoyed.

But the UK is much more densely populated. You travel for 70 miles in England and you've passed 3 cities.

Nobody is considering Oxford to be part of the London metro area.

I never got why Oxford airport was called "London Oxford". It's 70 miles away from London.

More traditional gender roles than other cultures (i.e. more housewives/SAHMs), also close vicinity to Malaysia so might have people commuting to Malaysia to work (so wouldn't count among the SG labour force).

I think it's more likely that anyone who lives in Singapore and speaks a language other than the 4 listed here, then they will certainly ALSO speak at least one of these 4 languages.