The problem with this is relatives may need to when it comes to dealing with wills and assets later. Naive legal statements like "I leave my car to Bob" become rather difficult when the car is tied into cloud accounts, locked EV chargers and weird subscription services. It becomes a whole digital forensics operation.

I personally have no problem with them going through my stuff. Not the "I have nothing to hide" defence. I just don't give a crap.

With respect to my personal situation, my father took thousands of photos of me, my children etc back as far as 2002. Sent me a selection low res jpegs of them by email. I was thrilled when I got the original RAWs from his NAS in the end. There was so much stuff in there I had forgotten that he hadn't sent.