thanks - that's certainly the elephant in the room. not sure he is fully accepting that this could truly impact him - soon/later/who knows when.I wish your dad the best. Hope that he can enjoy some winter warmth down south for the coldest months. I, personally, could not take severe winter cold, snow, ice, being a southern person.
We have had some very personal dealings with Parkinsons, and it could impact his traveling alone, even being alone - just something for y'all to consider.