I've talked to many deceased estate cleaners over the years, I have seen them in action many times. The amount of stuff people want to keep from relatives is a rounding error of 0%.

Whole lives of collecting sentimental goods all end up going in a giant bin, a whole house cleaned out in less than 2 hours. Photo albums are rarely kept, they just go in with it all and off to the tip usually in a single morning.

What you think is important to you, is basically just trash to your relatives/kids. They will probably have want they want before you are gone.