Yes, BigMike, if we were stuck in Europe (or anywhere else) we could get someone to cover the mail for us. It used to be easy - our good friends lived across the street; DH's sister lived three blocks away - but the friends moved out of town and SIL moved out of state. The person renting our friends' old house is a teacher who leaves town, usually leaves the country, as soon as school is out. And maybe half the houses on our block are vacant, being remodeled. We do have a couple of fallback relatives, though. It's just not as convenient for us or the mail-picker-upper as it used to be.
We'll manage. It is interesting thinking how we would handle being quarantined abroad, or self-quarantined at home. All the organizations with which we are involved, for example. They get along without us while we're gone, but they're grumpy about it. :-)