@LBFseBrom
I agree, dementia is something that generally cannot be accommodated at home. Many patients need 24 hour care and supervision, they can be impulsive, sometimes aggressive and a danger to themselves and others. It's terribly, terribly sad but specialised residential care is necessary for them.*
Yes, I agree too. We tried to keep MIL in her own home, caring for her between ourselves, which worked at first but as her condition got worse, she was dangerous. She'd always been independent and always walked to the shops virtually every day, to the library, etc. Trouble was, she started forgetting where she lived, not just the street, but the town, so instead of leaving her drive and walking to the right to the newsagents, she'd walk to the left (as she used to do a few decades ago) and would get lost. Then she'd not known how to get back home - she could even walk straight past her house and not recognise it because she'd forgotten she'd moved and would be looking for a 3 storey terraced house instead of the bungalow she'd lived in for 20 years. The next day, she'd turn right, get her paper, and go straight home, no problem at all. It was so haphazard.
We turned up one morning to find her electric alarm clock on the lounge floor with the flex cut. She'd no knowledge of cutting it. But the bedroom circuit breaker had blown and there was a pair of scissors on the bedside table. She'd clearly got annoyed by it and instead of turning it off or unplugging it, she'd gone for the scissors to cut the cable, thus tripping the electrics.
Another time, she'd clearly had a blown bulb in her lounge and decided to change the bulb, something she'd done hundreds of times in her life. We turned up and the light fitting was hanging from the ceiling, broken light shade, broken bulb with glass all over the floor. Again, she'd no idea what she'd done.
She just wasn't safe to leave on her own for any time at all, so we had to organise 24 hour care for her at home, but she'd not let them in, would start getting aggressive when they turned up as she'd forget who they were from the day before, basically chase them out of the house with a stick!
So we fully understand why residential care homes are the only viable answer for those with advanced dementia.