I doubt it will be illegal to travel the mass gathering at Trafalgar Square normally has enough soap in it to mean it's the cleanest place in London.
I agree but I don't think personal responsibility is actually that good a phrase or an idea when it comes to something that will do very little to most people. Maybe personal responsibility and govt advice on high risk groups but I can't see personal responsibility working if the vaccine isn't the golden bullet. For instance if I tested positive of Covid and went to see my pals, all in their early 20s it is of course my choice and I have weighted up the decision but I don't think it's the safe decision or the one I would make and I'm not sure enough people would sit at home for 10 days whilst it, hopefully, passed.