That sounded extraordinarily high to me, and I think because of the subtle difference in implication (not that what you said isn't correct) between your 'such as', and [1]'s 'including'.
In the table below, by far the highest 'characteristic' (82%) is 'Dependence in ADLs (Activities of Daily Living Hierarchy Scale ≥3)'. 'Dependence in Activities of Daily Living' is basically a description of why anyone would be in assisted living in the first place.
But also, there's 'cognitive impairment', and there's cognitive impairment, as it were. I don't think if you populated a table with 'reasons residents aren't gaming' that 'dementia et al.' would be high on the list, and the games those that were played wouldn't be shooters & GTA so much as puzzlers and adventure type games. At least, my grandfather enjoyed Spyro, Zelda, Animal Farm, that sort of thing.