They're now mandatory in some countries such as Slovakia.
How many of the "at home" deaths are care homes? Those have been an absolute disaster for their residents.
About YouTube - Well in practice it’s probably more flexible but taking them at their word, they said they’ll take down any videos that contradict the WHO. The WHO are against wearing masks. The CDC has changed their stance finally — since April. Wear masks when indoors!
I'm not saying that there's nothing to the statistic, just that we have to be very careful about how we interpret things, and make sure that we think about the contextual factors.
Generally speaking though, I also think elevators should be taken into consideration more. I haven't heard much about recommendations regarding elevators, but surely it would help if people take the stairs as much as possible? I always take the stairs since the pandemic started, even the few times I've been to the office, which is eight floors up. Granted, a lot of people can't take the stairs because of health issues or because it's just too many floors, but those of us who can, should.