My DH has Alz - probably @Stage 5. He doesn’t drive anymore and sleeps lots. He dog sits for our granddog 4 days/week and enjoys his company. I’ve talked this plan over with our son, the dog’s owner. They haven’t gotten lost yet - both wear ID and DH keeps his cell phone with him. He calls me if he has any question. I have a caregiver 2-3afternoons/week - she drives him wherever he wants to go, plays games and visits with him. So far, that seems enough. I leave him home alone sometimes but feel like that’s ok now. He does yard work and doesn’t wander so far. I don’t know if this reply helps you - I know his condition and our plan could change quickly - but so far it’s ok. Best wishes on your decisions.