It is their home, not just a house made from bricks and mortar. However, I do agree with you.
As I have aged I have learned from the older people in my life. Those that made the right and also the wrong decisions (well in my opinion anyway).
You need to consider the future whatever age you are. However, your health changes far quicker as you age, so the future to consider when you are 30 may be for the next 20 years. The future when you are 60 may be 10 years and the future when you are 70 may only be 5 years.
My mum moved into a smaller bungalow from a large house when she was 55 because she knew that she would not cope with the stairs as she aged. She moved from her bungalow to sheltered housing when she was 72 as she knew she would eventually need a warden etc. There were plenty of 1st floor flats, but she wanted a ground floor with access and views to the garden. This took longer to find and she wanted to do it with no pressure.
3 years on, my mum needs a new hip and is bloody relieved to be in the right place.
My aunt (mother's sister) lives in a large house in the middle of no where. She is 78. Her beloved husband of 60 years died a few months ago. My aunt is immobile and grieving. If they both had moved into a village/town with access to shops etc and a bungalow or ground floor flat, it would be much better for my immobile aunt now. Also, her and my uncle would have 'settled' together before he passed away. Now my aunt is rattling around a big house with nobody around and has to try to make somewhere new her home.
My friend's mother is 82. Before her husband died 5 years ago, her daughters asked them to move and start in a more appropriate location together as they were aware that their mother wouldn't be able to cope in the house alone. They didn't. Now my friend's mother lives in a house she is unable to get upstairs, can't keep the huge garden neat and has run out of savings to keep the house too.
Far better all round if 8 years ago they had moved into a smaller bungalow together and settled into a life and found out about the area together. Now she is alone and has to move as she can't afford to live there.
Planning for the future is more than about your pension.