Thank you both for your replies. They make sense, in the context of what I’ve experienced.
My father is quite elderly, and I know he had at least one mini-stroke some years ago. And, on a recent visit I made to him (note I live 2000 miles away), he did seem to become more agitated in the evenings; one evening when I went out for a couple of beers at the local pub, he was ready to call the police because his little boy wasn’t home, and it was a school night. He’s also wondered where his wife (my mother) is; in truth, she died over 20 years ago. And have I heard from my sister who lives overseas? Actually, she moved back to Canada eight years ago. Dad has travelled to visit her in her Canadian home a few times. Although on the last visit, he got lost trying to find the exit at the airport, forgot where he was or why he was there, and spent two hours wandering the airport until the police, who had been alerted, found him and guided him to my very-worried sister at the exit.
Another question, if I may: how does one convince someone suffering from this that they are no longer independent? Dad insists he manages just fine on his own, thankyouverymuch; yet we have arranged for caregivers to visit daily, and if it wasn’t for them, he’d have no groceries, no clean laundry, no meals prepared, he wouldn’t take the pills he’s been prescribed (he fights taking those because he’s forgotten his physician really did prescribe them)… You get the idea. He is definitely not independent, and he hates his caregivers with a passion: “These people show up to visit, but they won’t take time for coffee and a chat, and they insist on making me take @#$% pills!” I should add that he is also legally blind.
At this point, a home of some sort would seem to be the best answer, but he won’t hear of it. The blindness plays a role in his lack of independence, of course, but it seems to me that if he was somewhere where he had people to talk to, and activities to participate in (even singing Spanish songs), and regular nutritious meals, he might not be mentally falling away as much as he seems to be. Certainly, if someone holding themselves out as a nurse gave him his pills, he might not put up such a fight about them. And we would not be so worried that something would happen (e.g. a fall, a scald when he tries to make coffee, a kitchen mishap, etc.) to make things worse.
Any hints for convincing him that there are more mentally-stimulating and safer places to be?