My daughter and I took the plunge and rescheduled our canceled 2020 trip to London. We have both been before, but we have never gone as a duo. We arrived Sunday morning. I can confirm what others have observed; masking is not universal - to say the least. It is better in the museums and mediocre in the underground so we are trying to avoid the busy times. We have tickets to two performances; I'm curious what the theatre policies are like in this regard. The restaurants are busy (and somewhat understaffed), the merchants are thrilled to see shoppers, and the flowers/trees are blooming. We are having a great time.
One highlight of our trip thus far has been our Legal London tour with Simon from London Walks. He was really informative, funny, and showed us places in London we would have never found on our own. The people on the tour were good companions as well.
I'm glad that this business has weathered the COVID storm.