They most likely don't have uniforms because the elders don't want to feel like they are living in a hospital.

They could wear a shirt with the company's logo and jeans, a uniform can be anything from a suit to blue jeans and a white tshirt. I know target just requires some type of khaki pants and a red plain shirt. Doesn't have to be scrubs or anything.

When I worked in a nursing home, some of my resident's family members would bring them scrubs to wear because they liked the way they felt. :-) Needless to say, our uniforms were scrubs.

how in any way were they being judgmental?

By judging an elderly person saying they're new in a retirement facility to mean the obvious rather than the less obvious? It's like how I judge a frothing at the mouth naked man carrying a machete running at me as a bad person. We can be so judgmental.