Well, when a customer complains to me about her shower head, or I notice that it has inadequate flow, I just replace it with a low flow shower head that works, then she looks at it and says that’s wonderful and pays me.
I’ll bet that the water starved Israelis, with their obsession with water saving and efficiency, also uses low flow shower heads in their hotels.
I assure you, it’s not my imagination. When I got a new shower head, and the water trickled out of it, I took it off, and drilled out the hole, and got a greater flow of water.
All the older shower heads in my buildings have great water flow. All the newer ones, mere trickles.