I'm with their intentions, but it's near impossible to avoid hypocrisy - how did they all get into central London?
Like the absurd Paris conference on climate change, with people jetting in from all over the word, using taxis and hotels, the carbon footprint of that conference alone needs assessment before starting on the self-congratulation.
Vitue-signalling of course, but still, it's good to be young and I hope they have a nice time together in the evening.