I think if it was an organised singing in a particular place , and if this was allowed, which is very unlikely, then I would be in favour.
I too love singing Carols and in previous years my friend and I would go to Carols in the Park in our local park ,led by the local Brass Band which was a super occasion.
It is the though of singing on my doorstep, on my own, when more than half the street wouldn’t turn out.
I really am sorry Bluebell to rain on your parade.
Totally out of character for me.