The primary issue is I don’t always access devices from only those 3 systems. If I’m traveling or I wipe my device or get a new one, I would have to add the new key to many servers as authorized keys, and I’d need to have password access enabled in order to add the keys in the first place. Also, I want a key backed up in case of disaster since all of my devices are in my home most of the time. A few people use these systems, but only I maintain them.
The primary issue is I don’t always access devices from only those 3 systems. If I’m traveling or I wipe my device or get a new one, I would have to add the new key to many servers as authorized keys, and I’d need to have password access enabled in order to add the keys in the first place. Also, I want a key backed up in case of disaster since all of my devices are in my home most of the time. A few people use these systems, but only I maintain them.