I observe that many people in the UK starts to talk with “low noise” voices.

It could be a methaphore for a libel/political correct dumbed down self censure, but even if it is probably linked to such a fake nice (nescius/ignorant) superficiality where everybody fears everybody and only the “rude kids” yells their guts out, it is a true sensual auditive experience, of people sending minimalist signals through cotton walls.

A country talking inwards must learn to “SPEAK UP !”.