unless you experienced dementia or bedridden parents, you will realised that adult working children cannot cope without screaming/yelling and losing sanity.
Then I realised that time, consolidating some funds from all siblings then getting a maid was the best choice. The community hospital nurses did the cleaning, medications of the elderly and the maid followed well, ultimately rolling Ahma to sides to wipe down and remove diapers, etc, tuck her up on bed or wheel her around. One or two months' of training in the hospital, the clever and kind not too young maid already pick up skillset, well sort after if elderly passed on and needed by others.