This one is the only one of my three cats who has this box (and bag) obsession. Alpha Cat and Bonus Cat will both leisurely explore a box if one is left lying around and might even sit in it for a bit, but neither one is especially excited about it, unlike Other Cat. But then, she’s a very “high need” beastie in general.
Nori, our long cat (bottom) weighs in at 12lbs. Li’l Baby Tub-tub (Niko), somehow weighs 14lbs. I think the vet’s scales are broken, but there’s dark talk of someone going on a “diet”.
Good luck with that diet thing. Two of my three are hefty, and despite cutting their food back dramatically and putting the skinny cat’s full bowl out of their reach, they’re both holding steady because they help themselves to the dog’s kibble. Doggo won’t eat at set meal times, and he’s too old to change his ways. Also, the cats intimidate him.