Hi Julie, I think that’s absolutely terrible!!! And there’s no way that she can know that your daughter will need a wheelchair in future. Many of us on here use mobility aids for outside but can still manage to get around our own homes!
As this OT person is so difficult I would be tempted to go above her head. You could call the office where she is based and ask to speak to her manager. Just explain why, at this point, you would prefer the stair lift and that she has upset your daughter.
On other hand Mrs J’s advice is very good. Just say NO!
If OT will not fit the stair lift, have a look on this site about grants to help with aids and adaptations. At top of screen you’ll see a bit that say ‘Support’. The grants info should be somewhere in there.
Also the stair lift people will often offer no-interest credit deals and have used stair lifts which are lower cost.
Don’t be bullied.