Not being posh has been fashionable before. A fashion for dropping terminal g existed the upper classes in the 1920's UK. Dorothy L. Sayer's Lord Peter Wimsey did this, and it was fascinating to hear this affectation in the 1970's BBC adaptations with Ian Carmichael. https://www.irishtimes.com/opinion/no-g-men-frank-mcnally-on... Also, there is a backlash against Received Pronunciation as inauthentic. Now I enjoy BBC announcers with regional accents, unlike the voices I heard on BBC in the seventies and eighties.