DH's sister arrived back in UK last weekend after two weeks in Johannesburg. She wants to come in and pick up some stuff she left at ours this afternoon and I've said it might not be a good idea as she hasn't had the PCR test results (or perhaps even the PCR test for recently arrived travellers yet, I don't know). I've offered to drop the stuff to her. DH has said I'm being ridiculous and thinks it's because I don't like her. I've got to go to an office next week and meet staff that also visit care homes so want to be cautious.
YABU - it's okay for her to come in the house and get the stuff (and have a drink etc)
YANBU - he should do a doorstep handover or let me drop it off at hers