[incision]

>Except for one issue: it actually slows down the efficiency of the bathroom.

With one exception, every bathroom within my memory had the drier as a bottleneck, typically at a ratio of 3:1 or worse.

Having a drier per sink would actually improve the efficiency.

The one exception was a older building which had towel dispensers over each of 5 sinks. They eventually replaced them with a single dispenser on the wall at the end of the row. Problem was, towels would inevitably fall in the sink and cause a clog.