Maybe you are wondering why I ask, perhaps? Well, my husband met me at the pool for a later session today (I had been in multiple times by then and finished my lap swim) to cool off and refresh for 30-40 minutes before our session ended. When he walked up to the pool edge, he stopped; dipped his toe, and contemplated, or at least that's what I thought he was doing. He then slid over the edge and got in, but only up to his waist, wincing a bit. I walked up and jumped in like described and he "couldn't believe" my style; asking, "don't you think it's kind of cold?" "No way, Jose" was my response. Totally refreshing!
As I looked around the pool, I discovered that body-of-water-entering is about 33%/33%/33% on all styles, at least for a local pool with all age groups in attendance.