"Wait until the dementia comes to her."

There's a tree. You're there. I have a number. 313. Do you know what it means? How many stars are in the sky? You're looking mighty lost. I like to drink things. What about telephones? You're not being serious. Oh, yes. So, no. Ok. Well, here's a glass, play it on the stereo with the trees real green. Talk to you later.

http://www.independent.co.uk/news/world/europe/switzerlands-dementiaville-designed-to-mirror-the-past-6293712.html

The newly approved €20m (£17m) housing project is to be built next to the Swiss village of Wiedlisbach near Bern and will provide sheltered accommodation and care for 150 elderly dementia patients in 23 purpose-built 1950s-style houses. The homes will be deliberately designed to recreate the atmosphere of times past.

The scheme's promoters said there will be no closed doors and residents will be free to move about. To reinforce an atmosphere of normality, the carers will dress as gardeners, hairdressers and shop assistants. The only catch is that Wiedlisbach's inhabitants will not be allowed to leave the village.

will not be allowed to leave the village
http://dvdoutsider.co.uk/articles/pics/p/prisoner4.jpg

My grandmother had Alzheimer's. I don't recall her major issue being "this world isn't 1954" or the lack of era-appropriate costumed caretakers.