My spouse (92) diagnosed with dementia, not allowed to drive. I am still working full time and am not available to transport because I leave at 6:45 AM to get to work, and there until 4PM. He is not caring for himself (changing clothes he has worn for weeks) even though he may be washing up and returning to the same clothes. He is not totally mobile (spinal stenosis, chf, hbp, bph, deaf (won't wear hearing aid), etc.
On the other hand, if he is a wartime vet with few resources, VA will provide Aide and Attendance for in home care. I would look into that.