I'd posted on here a while ago about concerns I had with my dad who really needed care but thought he was fine and didn't want to move.
I sort of tricked him by having him come to my place on a "vacation" and from there he just never was going home. Unknown to him, behind the scenes I had his dog shipped to my place (I'm about 1,000 miles from his house) and my siblings and wife flew up to his place and sent down anything of value (mostly sentimental) .
He occasionally figures it out but is really just more bummed about not being able to drive anymore. With his condition, if you don't talk too much about it, he forgets in 10 minutes and we just act like he's still on vacation. One month in and it is working like a charm.
My friend had a similar issue with his dad and when it came time for 24/7 care he took his dad out for the afternoon while his wife and friends moved his dad's stuff to the nursing home. Then at the end of the day, instead of my friend taking him to his house, he took him to the nursing home. His dad saw all of his stuff and said "Do I live here now" and my friend said "yes" then stayed a few minutes before heading out to insure his dad settled in.