As far as I know it was a genuinely grassroots initiative, started by Dutch Londoner, after a similar phenomenon in the Netherlands (which I think followed from

As far as I know it was a genuinely grassroots initiative, started by Dutch Londoner, after a similar phenomenon in the Netherlands (which I think followed from Italy). https://www.swlondoner.co.uk/i-feel-like-a-proper-londoner-now-meet-the-streatham-mum-who-started-clap-for-our-carers-in-the-uk/ https://www.swlondoner.co.uk/i-feel-like-a-proper-londoner-n...