What is the point in all this stuff boxed up for decades forgotten about and only opened up when the parents have died?
Why should the parents be responsible for stuff they don't want? If something happened to the house it would be them doing all the insurance stuff, not the actual owners.
Stuff stored for decades in the loft space, who is left to move it all if any works need doing there?
If it's that sentimental or treasured to you why leave it with someone else? Surely these are the things that you want to personally protect?
Are parents expected to never move because of all this stuff they don't want? All because you don't have the space for your stuff.
Why should they pay for things like skips to move your crap, haven't they cleaned up after your arses for long enough?
Surely the mature, responsible thing would be to ask parents about keeping some stuff there, and making your own arrangements to move it from A to B without assuming someone else will do this.
It's not about getting rid of all traces of ever having children. It's about finally reclaiming a large proportion of your home back from your kids. When you think, from the day they move in to the day they move out, their crap is everywhere.
Even though mine have been and taken a lot, I still open a cupboard or something and find a cup that they claimed. The chip in something, a dent, a stain that won't go. The towel from the hair dye disaster that is still in use. Sometimes walking past a random thing I burst out laughing at a memory from long ago. To get this from their crap, I'd have to go through it all.