UK stats in 2021 showed 30% of 18-25 years old think the Monarchy should stay. I imagine that current stats would be lower, due to the enormous expense of the two last major events, the cost of living crisis, and the change in Police repression of protests.
My GCs and friends think it is all nonsense, and so do all other young people in my life, and none of them are active on FB, which is for grannies as far as they are concerned, and some of their parents. I am of course talking about the UK, as this is what we are discussing here.