[aranazo]

You don't have 80cm between normal floor joists so installation in a regular house could be complex and expensive. If you are designing a multistory new build specifically for the elderly leaving a space for a solution like this to be installed/uninstalled in the future could be added to building standards.

[bobthepanda]

sure, I'm just saying that a elevator normally takes up much more space and is therefore more expensive to start with.