Oh, I read your question wrong before. You stressed that people of college age must dance with you. I'm about your age, but my teacher is in her fifties and has a deep knowledge of dance. Hehe, I just care about the purpose of fitness (I exercise all over the body, which is easier to stick to and more interesting than going to the gym) and learning to dance. I don't care about the venue. I don't think the place where I dance is suitable for you. I'm surrounded by older people.
In addition, you can't rush for success. You have to learn tango when you come up. You should learn the basic dance steps, the coordination of whole body movements and the feeling of music rhythm. Every dance step has its own characteristic rhythm, so it is not easy to jump out.
I heard that Wenguang Dance School is good. Search online.