It was an older gentleman. I was a little dumbfounded so I think I stammered out something about people typically doing it because of a deep love for the sea and swimming so its still special even there were more people doing it. Later I had the thought that Im wearing a little finfun that says mermaid on it and youre wearing goggles, what was your first clue. Honestly after saying something awkwardly I waited for him to stop talking so I could finish my practice and leave. Besides even if it did magically get 'more popular' who cares? Id love to see the local pool overtaken by mers.