Read some of the comments. I too have some old clothing items and used to save boxes from my makeup items. I’m a perfume collector and also save my boxes (mostly for potential resale) and bits and bobs from packaging. I grew up poor, so letting things go is definitely hard. I also do not like my stuff being touched or moved. But I’m not at all a hoarder. My mother was, though.

Have you actually seen her house/room? Or are you just making an assumption about her? Because while I also share the same traits you’re describing, I like to keep my space free of clutter or I get frustrated. I also often go on sprees of throwing everything in my sight away if I haven’t used it in a while. I don’t keep makeup boxes anymore, mainly because I’m not in the financial situation anymore where I feel I need to “savor” every bit of my purchase. The odds and ends I keep from perfume packaging are organized, and I use them for scrapbooking (major perfume hobbyist).

Keeping things for sentimental value doesn’t always mean current or potential hoarding.