When's the last time you saw a yoga studio the size of an average hospital? Most hospitals have staff numbering into the hundreds or thousands with 24/7 operations [1]. We're talking large locker room facilities all over the place with many departments getting their own, especially after COVID, which themselves become central points for disease spread since shift changes aren't evenly spread out.

I don't think it's a bad idea to make big investments into such infrastructure now but I think it's completely reasonable it wasn't a priority before.

[1] The average hospital with 50 to 99 beds has a FT+PT staff of about 400 ( beckershospitalreview.com/hospital-management-administration/50-things-to-know-about-hospital-staffing.html ) and half of all hospitals in the US have under 100 beds.

Most bathrooms in hospitals are private.

The argument that's usually given is that changing 2x more per day is too much. I used to work for a research doctor and he would regularly hold meetings in his scrubs with high profile scientists.

Yeah, like washing your have is a big chore too.