By the feel of central London currently, I will be fascinated to see how the numbers go in a few days time. The streets are very empty, the restaurants are empty, the pubs are either closed or empty. People are being cautious. If that doesn't significantly slow the spread, then we might as well just give up on that tack and let it rip.
Whereas, from what I understand from more rural friends, there's still the attitude that it's a city problem and it won't have any effect on their socialising plans (at least until they actually get it, and then their attitude changes.