I live on my own. Most of my friends are in 1 or 2 person households, very few families.
We have just started to wind down any attempts at social lives for the winter because it's getting too cold and dark to do much outside in the evenings.
But now we can meet in groups of 6 inside - even if we are from 6 different households.
Given that most spread is among the 18-40 age group at the moment, isn't allowing 6 single adults to mingle all winter going to cause far more virus spread than allowing 2 families only who total 8-10 people to meet? Especially with universities starting?
I'm not doing anything for a 2-3 weeks anyway because I'm a teacher and want to see what the potential effect of schools is before inflicting myself on my non teacher, non parent friends (!) But I'm certainly now hoping to see friends over the winter whereas I didn't really think that was going to happen before.