Why buy a house with huge windows - and then swathe them in blinds?

I can't understand anyone buying a house with lovely views would want to shut them out. If you have people walking past your window, then yes, put blinds up but ones as Josieann describes.

Our new build (bungalow) on the long south side is 80% glazed but the shape of the building provides shade at various time of the day in the open plan living/dining area. The only curtains up will be in the two south facing bedrooms. This is to keep the rooms dark in the mornings. I prefer curtains to blinds. Just choosing some patterned fabric now for the second bedroom.

We are very lucky in that the lane ends with us and our nearest neighbours are 500m away. There're also trees between us and them.

My house is glass across the front from the road. I have duaroll blinds so I can see out and let the light in. I have them in different colours and white. Perfect. I dislike curtains. The more glass the better for me.

Maybe they didn't realise until they moved in how vulnerable and on display they would feel. My parents lived in a bungalow with picture windows and large glass panes in the front door.
It was fine while my father was alive but when my mother was left she felt vulnerable sitting on her own to the full view of the village.
If you got up in the night you had to scuttle in the dark to the loo. She put up Venetian blinds that could be tilted for sun glare and partly closed on an evening. At the door, she had a roman blind which made it much more private.
Sometimes you have to live somewhere until you are aware of the drawbacks.

Blinds don't necessarily block light, only in-viewers.

To let more light in.

Our house has very big windows and overlooks fields. We have Venetian blinds because otherwise the glare of the sun at certain times can be unbearable.