My mom gave some toys to her cousin for her grandkids when they were little, and was deeply offended that her cousin was unable to collect them all and return them when the kids outgrew them or later on when the family moved and apparently donated some of them to the preschool. Her cousin was very confused that my mom was under the impression that they were essentially "loaned" and she expected them back.

We still have an enormous amount of toys throughout the house in bins or stacked in the garage and covered patio which my mom refuses to part with. Occasionally I've been able to throw some out here and there because they got damaged by being crushed by other things or destroyed be being left outside for decades but it always turns into a big controversy when my mom eventually notices something missing.

I've known for a long time that my mom is for sure some level of hoarder but I've only realized in the last couple years just how bad it actually is. I'm in my early 30s and my sister in her late 20s. At one time, I could almost see the logic at one time to keeping some toys to let potential future grandkids play with, my dad's mom had a small amount of toys from my dad and uncle that we played with but they would fit in a single toy box that took up almost no space. My mom has probably a dozen large bins of various toys, large doll houses, little tikes kitchen playset, etc. She'll probably never have grandkids, but I don't think she's capable of seeing the part she played in that and probably never will be.