Anecdotal evidence but, the most common touch-less features in a bath room are the dryer and soap, the two things you only ever touch once and when you are not in a transitional phase.

The sink I tend to find is usually a handle you have to physically touch, when dirty and when clean, it is such a waste. Bring back the Elementary School foot pedals for sinks (and toilets for flushing).

I randomly mentioned that if I ever find a used Hospital Surgery Scrub Sink, I will repurpose an area in the house just to use it.