Tai Chi Sunday mornings

Today I met a Chinese man while sitting outside at Starbuck's. I had seen him there before, with three adorable Akita puppies, and so it was easy to open a discussion with him again. As it turns out, he teaches Tai Chi in Shamrock park on Sunday mornings at 8:30 a.m. I would love to do that but am NOT a morning person. I often go to bed at 3, 4, 5, a.m. and sometimes later. I asked him if he ever considered teaching in Library Park, but he said there were no convenient restrooms there, and so opted for Shamrock park instead. I have to say that I love seeing people doing Tai Chi in public parks. It is so pleasant to see, and relaxing to watch. When I was staying in San Francisco, I would see this kind of thing all the time. My vote, for when the city library is rennovated, that a public restroom will be put in. But then again, I saw some transients near Shamrock park recently. Do public restrooms encourage this? I wonder what a solution would be?