This is a minor trend at the moment. A small number of, mainly, academies and Free Schools use this type of system and embed this culture- some very successfully. It provokes views at opposite ends of the spectrum. However, behaviour is a really big issue, particularly in secondary schools and an increasing problem. I suspect most parents would be very shocked by the daily experience of students from Y7-13 in state schools.
I don't know how widespread this sort of system is across the country or how well-known it is to parents generally.
I have seen a system very like this in a Teeside Church school several years ago. Its effect on behaviour in classrooms and corridors and at break and lunchtime was amazing but they had not managed to embed high quality teaching so staff only used it as a means to control behaviour without it being tied into creating a place for calm thinking, concentration, reflection, listening to others, thoughtful contributing, pacy learning, creative spaces etc.
How it is introduced and embedded matters hugely and how staff and students are trained to use it matters hugely- and the quality of teaching and learning has to be high on that agenda. The balance between enforced control and a system everyone finds helps them so 'agree' to using is important.
I can see many students would find it calming, creating a place that felt safe, gave them space to think and learn. Others would rebel. Some wouldn't cope and would end up excluded or simply sitting in silence not learning if a teacher was not on the ball.
I wonder how parents feel about it? I think it is probably aimed at 11+. I haven't seen it in a primary school.
https://www.nytimes.com/2024/03/09/world/europe/uk-strict-schools.html?unlocked_article_code=1.b00.uKgO.msv0Y5lP7vrS&smid=url-share