Sure, I don't love cleaning kitty litter, but if I lost the ability to clean it, and I didn't have the ability to have someone else live-in and clean it for me, I wouldn't be able to have a cat, and that would be _immensely_ saddening to me. The same goes for a cutting a lawn; not being able to cut your own lawn means potentially not getting to enjoy _having_ a lawn, given that part of the enjoyment is presumably in actually getting to spend time in it, take care of it, etc.

This isn't even mentioning the fact that the loss of routine can itself be jarring, and of course all of the sibling comments explaining that the real loss is agency. That said, I think it's worth realizing that even though you and I aren't in the group of people who particularly enjoy chores (and those people do exist!), the reason they exist at all is because they do actually accomplish something useful, and not being able to perform them means either losing those benefits or having to rely on the goodwill of others to take care of them for you. Given that the "others" tend to be those closest to you that you care most about, is it really that hard to imagine that someone might feel like they're burdening their loved ones rather than reveling in the "freedom" that comes from not being physically capable of mowing their own lawn?