Settle a disagreement for us!
DH grew up in household where curtains downstairs were closed of an evening until you went to bed, then they were opened. He says this was because keeping them closed advertised you had stuff to hide so it was a security reason.
Meanwhile I grew up in a household where downstairs curtains were closed of an evening and stayed so until you got up next morning, again for a security reason to keep others from peering in and seeing what you owned.
We both think our way is better as a deterrent to potential unsavoury night time folk and uninvited midnight visitors. We both think each others way is weird!
Who is right?
YABU - he is right, open curtains over night.
YANBU - I am right, keep them closed overnight.