We have poa, and am trustee over the trust. But he goes through his Weeks allowance in a day. Pull tabs, lotto tickets, video poker, pull tabs. It is all he wants to do, and I wish there was a facility where he could gamble all day without spending real money because he is beyond being broken of the habit, it is the only thing that makes him happy, winning! He recently lost his drivers license, and I have care givers with him all waking hours. I want him to play video poker, he plays for hours on the iPad and is very content. Best think i did was get him an ipad with video poker. The caregivers try to keep him from blowing all his money in the pull tabs machines at the local bars, but he yells and gets physical and states it is his G.D. Money . Says he does not care if he blows it all. I am considering giving the caregivers a daily envelope, one each day, and give him his allowance in ones and fives so he feels like he has a lot of money. The neurologist just doubled his dose of seroquel. I hope that helps the aggression. The problem is these seniors with Alzheimer's are so bored and lonely. Dad can not hear well, nor is he able to follow a conversation, or tv program, or simple game. His only thrill is winning at video poker, which he can still do, or pull tabs. But he likes to sit at bars when he does this because so many people at least say hi to him, and have known him for years. I don't want to take away these things. yet. I wish there were safe gambling places for seniors like him, penny games that feel like they win big. If there was a nursing home filled with fake gambling machines I would have dad there. I know it is a sad life, but with his disease I am no longer trying to change his habit.
Dad can not learn new but the video poker he has done forever so it is old knowledge. I tried to reach him solitaire which he also knew, but he could not re-learn that as he did not do it as often as the video poker.
I also like your idea of giving him a daily allowance, instead of a weekly one, and giving it to him in small bills.
I hope that the medication dosage change will calm him enough to allow him to continue visiting the bars where he is known and where he gets pleasure (with a caregiver, of course.) Obviously that can't continue if it poses dangers to himself or others, but I'm sure you are keeping a watchful eye on that.
The idea of a no-cost/low-cost casino for the elderly (with or without dementia) is an interesting one. Since there isn't one down the street from Dad's house, I think you are doing great in coping with the situation.