MiL is mid 90s. And she lives with us. She wants all doors closed, all the windows shut and the heat on. Ok - I get that she's just sitting in one spot all day - but she's in a closed room herself with a blanket over her and the temperature in the room is 25 to 30c.
I can't cope with heat so I want things open and blowing through. It doesn't need include her lounge but everytime she gets up to wander about she shuts everything and turns the heat on again. We're in a 2 bedroom bungalow and our gas/electric is over £200 a month even in the summer. I mention this not that I care about the ££ (well I do but she can pay for it) but just to give an idea of what it's like.
(& don't say it's not for long, she has much older siblings)