Oh, I misread your question in front of you, you emphasized that you must be college-age people to dance with you. I'm about the same age as you but the teacher is in her fifties and is a very good dancer. Oh, I just want to get fit (the whole body is in motion, easier to stick to than going to the gym, more fun) and learn to dance, and don't care about the venue, I don't think the place I'm dancing is suitable for you, surrounded by older people
Also, you can't be in a hurry to learn the tango, you have to learn the basic steps, the whole body movement, and the feeling of the rhythm of the music. Each dance step has its own characteristics Rhythm, it's not easy to bring out the characteristics.
I heard that Wenguang dance school is good, you search online