Why YSK: There are a lot of people these days living alone with pets and if anything happened to the owner, others may not know to attend to the pet. If something happened to you, a coma, an accident, death, etc, your wallet would be the first place anyone would look for info about you and it would probably be the fastest way to bring attention to your small loved ones.
I would say my first reaction to hearing my parent is dead/severely wounded would not be to look at home how the dog is doing but how my parent is doing or grieve.
After maybe 2 or 3 days I would maybe have a clear enough mind to think about a pet, that’s not even mine.