It sounds like you really need for your Mom to stay in her wheelchair. Getting on at the bottom might be fairly easy, but off at the top is a little bit more tricky and takes some maneuvering,
If your Mom can’t walk a couple steps, the stairlift is probably not the best solution, especially at the top...safety could indeed be an issue.
I think, just from watching my folks, that an elevator would be a better solution for your folks.
I have to agree. My Mom has bad knees and faltering balance. Her greatest fear is falling, breaking a hip, and dying in a hospital. Whatever we put in MUST allay her fears. (and ours, as the risk of her falling is real.)
We need to keep her in her seat between floors.
Thx.